The DNR is responsible for administering more than twelve million acres of State-owned and State-managed mineral rights. DNR geologists increase their understanding of the estate’s mineral potential through graphical and statistical analysis of scientific data. Their mineral potential evaluations are based on new scientific data from geological and geochemical surveys that supplements information obtained from previous DNR projects and historical exploration records. The DNR then applies this knowledge to issues that arise pertaining to the state’s mineral estate, such as mineral potential reviews for proposed land transactions.
Data release public notifications - Why do this?
The purpose is to make the new "raw analytical" minerals data for DNR mineral projects publicly available promptly, so that the DNR does not hold unpublished data while the project continues, often for a year or more, and the report is written. New government minerals data may provide clues to the location of valuable undiscovered mineral deposits. The objective of this public disclosure is to meet the intent of the legislature to disclose government data that is not protected by law. This provides transparency to the public and fairness to all mineral companies, who have equal access to the data.
The Lands and Minerals Division will notify the public of new data releases through our GovDelivery email service. You can sign up below if interested in these notifications. The mineral potential project data release information is posted for at least one year on our Lands and Minerals News webpage. However after one year the data will continue to be available on the project webpages listed below.
Latest mineral potential project data releases
- April 5, 2023 - DNR Project 411: Minnesota MCC Drill Core Library Workshop Report
- October 21, 2021 - DNR Project 408: Use of 3-Band RGB Imagery to Enhance Display of Slope, Curvature and Residual Intensity in Aeromagnetic Data.
- July 15, 2021 - DNR Project 407: Historical Airborne-Geophysical Surveys on File at DNR.
- February 28, 2020 - DNR Open-File Project 404: Results of airborne geophysical survey flown as part of the Great Northern High Voltage Transmission Line project.
- December 10, 2019 - DNR Open-File Project 402: DNR Corescan Project site published featuring results and access to Coreshed application
- November 20, 2019 - DNR Open-File Project 403: Advance release of exploration documents compiled during application testing
For questions on any of the data releases or projects listed below (unless noted otherwise in a project description), please contact:
Don Elsenheimer
500 Lafayette Road
St. Paul, Minnesota 55155-4045
tel. 651-259-5433
fax 651-296-5939
[email protected]
Mineral potential projects - data and webpages
Shown below is a data table for published and open-file Mineral Potential Evaluation Section projects since 1976. Most of the projects have digital data to download found in the 'Link' heading farthest on the right. If a project has no digital data available there is an email link to contact us for more information.
If you would like to search for projects spatially you can download the following GIS shapefile which includes an ArcGIS layer file and metadata. The shapefile attributes include a URL to hyperlink to project webpages to download data where available.
GIS data
Mineral Potential Evaluation Section project boundaries as of January 2017 (zip, 2.1 MB).
Web map
You can also view the GIS data in the Drill Core Library & Mineral Exploration Collections Interactive Web Map. In the web map check on the layer titled 'DNR Mineral Potential Project Footprints'.
Table of mineral potential projects and data releases
| Year | Title | Type 1 | Type 2 | Type 3 | Agency | Links |
|---|---|---|---|---|---|---|
| 2023 | Project 411 Drill Core Library Workshop report |
All Minerals | DNR | Release narrative Report |
||
| 2021 | Project 408 Use of 3-Band RGB Imagery to Enhance Display of Slope, Curvature and Residual Intensity in Aeromagnetic Data |
Remote Sensing | Aeromagnetic | DNR |
Release narrative |
|
| 2021 | Project 407 Historical Airborne-Geophysical Surveys on File at DNR |
All Minerals | Geophysics | Aeromagnetic and Electromagnetic | DNR | |
| 2020 | Open-File Exploration Data 003 Data submission accompanying termination of state nonferrous mineral leases by AngloGold Ashanti Minnesota on 12/23/2019. Exploration areas include Aegir, Freyja, Knarr, Magni, and Ran in north-central Minnesota. |
Metallic Minerals | Exploration Geology | - | DNR summary Reports Drill core photos Geophysics raw data Geophysics, geochemistry, geology, and borings |
|
| 2020 | Open-File Exploration Data 002 Data submission accompanying sampling of public drill core by AngloGold Ashanti Minnesota in 2016 and 2017. |
Metallic Minerals | Examination & Assay | Thin Sections | - | DNR summary Sampling data |
| 2020 | Open-File Exploration Data 001 Data submission accompanying termination of state nonferrous mineral leases by AngloGold Ashanti Minnesota on 12/31/2018, Celina exploration area (southeast Koochiching County). |
Metallic Minerals | Exploration Geology | - | DNR summary Reports Drill core photos Geophysics raw data Geophysics, geochemistry, geology, and borings |
|
| 2020 | Open-File Project 404 Baseline geophysical data collection over state lands along the Great Northern High Voltage Transmission Line. |
All Minerals | Geophysics | Electromagnetic | DNR | Project summary Geophysical data approx. 1.5gb |
| 2019 |
Open-File Project 403 |
All Minerals | Mineral Exploration Documents | Compilation | DNR |
Project summary |
| 2019 | Open-File Project 402 DNR Corescan Project evaluating hyperspectral core imaging for mineral identification |
All Minerals | Evaluation | Resource Development | DNR | Reports, maps, and data |
| 2017 | Open-File Project 401 Aeromagnetic Data Reprocessing Test |
Metallic Minerals | Geophysics | Aeromagnetic | DNR | Contractor report and data |
| 2017 | Open-File Project 400 Establishing the Potential for Lithium Mineralization on State-Managed Mineral Rights. |
Metallic Minerals | Geochemistry | Lithium | DNR | |
| 2017 | Open-File Project 392 Regional Survey of Gold in Till, Cook Area, St. Louis County, Minnesota. |
Metallic Minerals | Geochemistry | Gold in Till | DNR | Map and Data |
| 2016 | Open-File Project 399 Lehmann Family Fund Collection - Donation of Mineral Exploration Documents (Polaris Joint Venture Included) |
Metallic Minerals | Mineral Exploration Documents | Compilation | DNR | Data, Maps, Documents, Web Map |
| 2014 | Report 381 Aggregate Resources of Aitkin County, MN: Sand and Gravel Resource Potential and Crushed Stone Resource Potential; 2 plates. |
Industrial Minerals | Geologic Mapping | Aggregate | DNR | Maps, Data, & Reports |
| 2013 | Open-File Project 391 Cook Area Drill Core Re-Logging and Sampling, St. Louis County |
Metallic Minerals | Geologic Drilling | Examination & Assay | DNR | Map and Data |
| 2013 | Open-File Project 394 Test of SGH Soil Survey Method |
Metallic Minerals | Geochemistry | SGH Methods | DNR | Map, Data, and Report |
| 2013 | Open-File Project 389 Heavy Mineral Concentrate Assays, St. Louis and Lake Counties |
Metallic Minerals | Geochemistry | HMC in Till | DNR | Map and Data |
| 2012 | Report 362 Aggregate Resources of Stearns County, MN: Sand and Gravel Resource Potential and Crushed Stone Resource Potential; 2 plates. |
Industrial Minerals | Geologic Mapping | Aggregate | DNR | Maps, Data, & Reports |
| 2012 | Report 384 Aggregate Resources of Kanabec County, MN: Sand and Gravel Resource Potential; 1 plate. |
Industrial Minerals | Geologic Mapping | Aggregate | DNR | Maps, Data, & Reports |
| 2011 | Open-File Project 387 Drill Core Library Bedrock Chemistry Database Pilot Project, Koochiching County |
Metallic Minerals | Geologic Drilling | Examination & Assay | DNR | Table |
| 2011 | Report 385 Geochemical Survey on Public Lands in the International Falls Area, Koochiching County, Minnesota. |
Metallic Minerals | Geochemistry | Gold in Till | DNR | Maps, Data, & Reports |
| 2011 | Report 380 Aggregate Resources and Silt and Clay Potential in Northern St. Louis and Lake Counties, Minnesota; 1 plate. |
Industrial Minerals | Geologic Mapping | Aggregate | DNR | Maps, Data, & Reports |
| 2010 | Open-File Project 379 Regional Survey of Gold in Till, Archean Greenstone Belt, Northeastern Itasca County. |
Metallic Minerals | Geochemistry | Gold in Till | DNR | Map, Data, and Presentation |
| 2010 | Report 378 Koochiching County International Falls Greenstone Drill Core Assays. |
Metallic Minerals | Geologic Drilling | Examination & Assay | DNR | Report,Map, Data, & Presentation |
| 2009 | Report 376 Minnesota Lake Sediment Geochemistry Surveys; Report 73 pages; Appendix A 4 pages; GIS Datasets-MN DNR Collection & U.S. Steel Collection. |
Metallic Minerals | Geochemistry | Lake Sediment Compilation | DNR | Report & Data |
| 2009 | Report 375 Aggregate Resources of Olmsted County, Minnesota; Sand and Gravel Potential & Crushed Stone Potential; 2 plates. |
Industrial Minerals | Geologic Mapping | Aggregate | DNR | Maps & Data |
| 2009 | Report 374 Aggregate Resources of Carlton County, Minnesota and Fond du Lac Reservation, Minnesota; Sand and Gravel Potential & Crushed Stone Potential; 1 plate. |
Industrial Minerals | Geologic Mapping | Aggregate | DNR | Maps & Data |
| 2009 | Open-File Project 372 Gold in Till Survey, Vermilion District, St. Louis County, MN |
Metallic Minerals | Geochemistry | Gold in Till | DNR | Data & Presentation |
| 2009 | Open-File Project 371 Reconnaissance Glacial Till Sampling & Gold Grain Counts, Virginia Horn |
Metallic Minerals | Geochemistry | Gold in Till | DNR | Data (.zip) |
| 2008 | Open-File Project 370 Reconnaissance Glacial Till Sampling & Gold Grain Counts, Nashwauk, Minnesota |
Metallic Minerals | Geochemistry | Gold in Till | DNR | Data (.zip) |
| 2008 | Open-File Project 373 St. Louis County Vermilion Greenstone Drill Core Assays |
Metallic Minerals | Geologic Drilling | Examination & Assay | DNR | Data & Presentation |
| 2008 | Report 366 Aggregate Resources of Mille Lacs County, Minnesota; Sand and Gravel Potential & Crushed Stone Potential; 2 plates. |
Industrial Minerals | Geologic Mapping | Aggregate | DNR | Maps & Data |
| 2007 | Report 371 and Open-File Project 368-2 Gold Mineralization in the Virginia Horn Greenstone Terrain, St. Louis County, Minnesota |
Metallic Minerals | Geologic Drilling and Gold in Till Survey | Examination & Assay | DNR | Report and Data |
| 2006 | Open-File Project 368-1 Re-analyzing Existing Drill Samples of the Rice River Area in Aitkin County |
Metallic Minerals | Geologic Drilling | Examination & Assay | DNR | Data (.zip) |
| 2005 | Report 365 Glacial Till Sampling in the Vermilion Greenstone Belt, Northeastern Minnesota; 85 pages; GIS data, tables, figures, and appendices. |
Metallic Minerals | Geochemistry | Gold in Till | DNR | Report and Data |
| 2006 | Report 364 Aggregate Resources and Surficial Geology of Meeker County, Minnesota; Sand and Gravel Potential & Geomorphology; 2 plates. |
Industrial Minerals | Geologic Mapping | Aggregate & Geomorphology | DNR | Maps & Data |
| 2003 | Report 363 Aggregate Resources and Surficial Geology of Renville County, Minnesota; 2 plates. |
Industrial Minerals | Geologic Mapping | Aggregate & Surficial Geology | DNR | Maps & Data |
| 2003 | Report 360 Aggregate Resources and Surficial Geology, LeSueur County, Minnesota; 2 plates. |
Industrial Minerals | Geologic Mapping | Aggregate & Surficial Geology | DNR | Maps & Data |
| 2003 | Report 358 Inventory of Publicly Owned Stockpiles and Natural Aggregate Resources at the Former LTV Mine and Vicinity; report 20 pages; two plates; GIS datasets; photos; database; and spreadsheets. |
Industrial Minerals | Geologic Inventory | Aggregate & Stockpiles | DNR | Report, Maps, and Data |
| 2002 | Report 357 Aggregate Resources and Surficial Geology of Dodge County, Minnesota; 4 plates. |
Industrial Minerals | Geologic Mapping | Aggregate & Surficial Geology | DNR | Maps & Data |
| 2002 | Report 356 Aggregate Resources and Surficial Geology of Benton County, Minnesota; 4 plates. |
Industrial Minerals | Geologic Mapping | Aggregate & Surficial Geology | DNR | Maps & Data |
| 2002 | Report 353 Description of the Metamorphosed Virginia Formation at the Peter Mitchell Mine, Babbitt, Minnesota |
Metallic Minerals | Geologic Drilling | Evaluation | DNR | Report (.pdf, 4 mb) and Figures (.pdf, 1 mb). Excel Data (.zip, 1 MB) |
| 2001 | Report 352 Aggregate Resources of Sherburne County, Minnesota. Digital data based on maps completed in July of 1987 and digitized in 2000. 2 plates. |
Industrial Minerals | Geologic Mapping | Aggregate | DNR | Maps & Data |
| 2001 | Report 350 Stockpile Ownership, Composition, and Use for Two Study Areas Located near Virginia and Calumet, Minnesota; 79 pages; 4 plates; 1 map; chemical assay data. |
Industrial Minerals | Geologic Inventory | Stockpiles | DNR | Report, Maps, and Data |
| 2003 | Report 347 Analysis of Drilling and Sampling Techniques Used to Obtain Representative and Accurate Samples in Coarse Sand and Gravel Deposits; 39 pages. |
Industrial Minerals | Geologic Drilling - Aggregate | Aggregate Methodologies | DNR | Report |
| 2001 | Report 345/MGS M-116 Aggregate Resources and Surficial Geology, Chisago County, Minnesota; 2 plates. |
Industrial Minerals | Geologic Mapping | Aggregate & Surficial Geology | MGS and DNR | Maps & Data |
| 2000 | Report 343 Aggregate Resources and Surficial Geology of Nicollet County, Minnesota; 4 plates. |
Industrial Minerals | Geologic Mapping | Aggregate & Surficial Geology | DNR | Maps & Data |
| 2002 | Report 340 Compilation of Mineral Resources Digital Information for the Minnesota River Valley Corridor; 12 pages; 4 plates; GIS data. |
Industrial Minerals | Geologic Mapping | Mineral Compilation | DNR, NRRI, & MGS | Report, Maps, & Data |
| 1999 | Report 335 Aggregate Resources and Surficial Geology, Blue Earth County, Minnesota; 4 plates. |
Industrial Minerals | Geologic Mapping | Aggregate & Surficial Geology | DNR | Maps & Data |
| 2004 | Report 334-20 Aggregate Resource Evaluation of a Portion of the Talcot Wildlife Management Area, Cottonwood County, Minnesota |
Industrial Minerals | Geologic Mapping | Aggregate Site Specific | DNR | Site-Specific Aggregate Webpage |
| 2001 | Report 334-14 Aggregate Resource Evaluation of the Olson and Cranberry Pits in the Mille Lacs Wildlife Management Area near Onamia, MN (Section 7, T41N, R25W and Section 34, T41N, R26W) |
Industrial Minerals | Geologic Mapping | Aggregate Site Specific | DNR | Site-Specific Aggregate Webpage |
| 2001 | Report 334-13 Aggregate Resource Evaluation of a School Trust Parcel Southeast of Big Fork In Itasca County, Minnesota |
Industrial Minerals | Geologic Mapping | Aggregate Site Specific | DNR | Site-Specific Aggregate Webpage |
| 2001 | Report 334-12 Aggregate Resource Evaluation of the Proposed Tansem SNA, Clay County, Minnesota (Sections 11 & 14 of T.137 N, R.44 W) |
Industrial Minerals | Geologic Mapping | Aggregate Site Specific | DNR | Site-Specific Aggregate Webpage |
| 2000 | Report 334-11 Aggregate Resource Evaluation for a portion of Felton Prairie in Clay County, Minnesota; 82 pages; 2 plates. |
Industrial Minerals | Geologic Mapping | Aggregate Site Specific | DNR | Site-Specific Aggregate Webpage |
| 2000 | Report 334-09 Site-Specific Aggregate Resource Evaluation, Warroad Area. |
Industrial Minerals | Geologic Mapping | Aggregate Site Specific | DNR | Site-Specific Aggregate Webpage |
| 2000 | Report 334-08 Site-specific Aggregate Resource Evaluation of Rako, Birchdale, and Birchdale East Pits near Baudette, MN |
Industrial Minerals | Geologic Mapping | Aggregate Site Specific | DNR | Site-Specific Aggregate Webpage |
| 2000 | Report 334-07 Site-Specific Aggregate Resource Evaluation of Site near Blue Mounds State Park |
Industrial Minerals | Geologic Mapping | Aggregate Site Specific | DNR | Site-Specific Aggregate Webpage |
| 2000 | Report 334-06 Site-specific Aggregate Resource Evaluation, Big Falls, Minnesota |
Industrial Minerals | Geologic Mapping | Aggregate Site Specific | DNR | Site-Specific Aggregate Webpage |
| 1998 | Report 334-02 Aggregate Resource Evaluation for a Potential SNA Site in Jackson County, Minnesota |
Industrial Minerals | Geologic Mapping | Aggregate Site Specific | DNR | Site-Specific Aggregate Webpage |
| 1999 | Report 334-01 Aggregate Resource Evaluation: Sand and Gravel Evaluation for a Site Near Bayport, Washington County, MN |
Industrial Minerals | Geologic Mapping | Aggregate Site Specific | DNR | Site-Specific Aggregate Webpage |
| 2005 | Report 333-1/MGS M-131 Aggregate Resources and Surficial Geology, Itasca County, Minnesota; 2 plates. |
Industrial Minerals | Geologic Mapping | Aggregate & Surficial Geology | MGS and DNR | Maps & Data |
| 1999 | Report 330 Results of a Mobile Metal Ion Geochemical Study near Birchdale, North West Koochiching County, Northern Minnesota |
Metallic Minerals | Geochemistry | Mobile Metal | DNR | Report (.pdf, 2 MB) Data (.zip, 46 MB) |
| 1999 | Report 326 Bedrock and Glacial Drift Mapping for Volcanogenic Massive Sulfide and Lode Gold Alteration in the Vermilion-Big Fork Greenstone Belt: Parts A and B. |
Metallic Minerals | Mineral Evaluation | Greenstone | DNR | Report and Data |
| 1997 | Report 318 Mineral Potential Study Greenstone Belt Boulder Tracing Twp. 60-65N R11-27W Ely Bigfork Area; 60 pages. |
Metallic Minerals | Geochemistry | Glacial Drift - Gravel Pits | DNR | Report and Data |
| 1997 | Report 317 Ore Deposit Modelling of the Footwall Mineralization of the Duluth Complex. |
Metallic Minerals | Geologic Modeling | Cu-Ni-PGEs Ore Deposit |
DNR | Report and Data |
| 1995 | Report 314 A Limited Survey of Selected Kimberlite Indicator Minerals from Glaciofluvial Sediments Across Minnesota; 34 pages. |
Metallic Minerals | Mineral Evaluation | Kimberlite Indicators | DNR | Report and Data |
| 1993 | Report 313 Compendium of Mineral Information, East-Central Minnesota. 33 pages. |
Minerals | Mineral Evaluation | East-Central Minnesota | DNR | Report |
| 1994 | Report 308 Platinum, Palladium and Gold Distribution in B-Horizon Soils in the Northwestern Part of the Duluth Complex, Minnesota; A cooperative project with the United States Geological Survey; 15 pages. |
Metallic Minerals | Geochemistry | Soil | DNR | Report and Data |
| 1997 | Report 306 Aggregate Resources, Eastern Clay County, Minnesota; 4 plates. |
Industrial Minerals | Geologic Mapping | Aggregate & Surficial Geology | DNR | Maps & Data |
| 1992 | Report 304 Aggregate Resources and Quaternary Geology, Isanti County, Minnesota; 2 plates. |
Industrial Minerals | Geologic Mapping | Aggregate & Surficial Geology | DNR | Maps & Data |
| 1995 | Report 298-2 Dimension Stone Inventory of Northern Minnesota |
Industrial Minerals | Geologic Inventory | Dimension Stone | DNR | Report & Data |
| 1993 | Report 298 Dimension Stone Inventory of Northern Minnesota 1993; 35 pages, 1 insert. |
Industrial Minerals | Geologic Inventory | Dimension Stone | DNR | Report & Data |
| 1994 | Report 296 Soil Geochemistry Survey (B-Horizon) in Linden Grove Area |
Metallic Minerals | Geochemistry | Soil | DNR | Report and Data |
| 1997 | Report 295-2 Compilation of Metallic Mineral Potential Databases for Analysis Using Geographic Information Systems |
Metallic Minerals | Geologic Database | Mineral Compilation | DNR | Reports and Data |
| 1993 | Report 295 Reconnaissance Mineral Potential Evaluation, Central Minnesota, Open File Report; 2 volumes. |
Metallic Minerals | Mineral Evaluation | Various | DNR | Reports |
| 1991 | Report 294 Aggregate Resources and Quaternary geology of Wright County, Minnesota; 18 pages, 2 plates. |
Industrial Minerals | Geologic Mapping | Aggregate & Surficial Geology | DNR | Maps, Data, & Report |
| 1991 | Report 290 Aeromagnetic Interpretation Pseudo-Geologic Maps, with Evaluation, in Lake of the Woods and Lake Counties, Minnesota; Baudette area: T157N-160N R33W, McDougal Lakes area: T59N-61N R9W-11W; references; 132 pages, 4 plates. |
Metallic Minerals | Geophysics | Aeromagnetic | DNR | Report, Maps, and Data |
| 1991 | Report 289 Dimension Stone Inventory of Northern Minnesota; identifies areas of Cook, Lake, St. Louis, Itasca, Koochiching & Lake of the Woods counties favorable for dimension stone development; 34 pages. |
Industrial Minerals | Geologic Inventory | Dimension Stone | DNR | Report & Data |
| 1991 | Report 288 Private Data Acquisition; synopsis of effort to gather historical exploration data from non-government sources; 364 pages. |
Metallic Minerals | Geologic Compilation | Private Exploration Data | DNR | Report and Data |
| 1997 | Report 284-1 An Interpretation of the Results of a Study of Heavy Minerals in Minnesota Northeastern Provenance Glaciofluvial Sediments; 100 pages. |
Metallic Minerals | Geochemistry | Glacial Drift | DNR | Report and Data |
| 1992 | Report 284 Chemical and Mineralogical Analyses and Geological Characteristics of Heavy Minerals from Glaciofluvial Sediments in Minnesota: Test and Pilot Study Data; Open-File Report 284; 100 pages. |
Metallic Minerals | Geochemistry | Glacial Drift | DNR | Report and Data |
| 1991 | Report 282 Industrial Minerals: Inventory of Industrial Mineral Pits and Quarries in Minnesota; 415 pages (two volumes). (v. 1 - 5.00) |
Industrial Minerals | Geologic Inventory | Industrial Mineral Pits & Quarries | DNR | Report |
| 1989 | Report 281-1-2 Aeromagnetic Data Interpretation Baudette Area, Minnesota for the MN DNR. By Allan Spector and Associates Limited, Toronto, Ontario, June, 1989. |
Metallic Minerals | Geophysics | Aeromagnetic | DNR | Report (.pdf, 2 MB) |
| 1989 | Report 281-1-1 Aeromagnetic Data Interpretation for the McDougal Lakes Area, Duluth Complex, Lake County, MN, June 1989. For MN DNR. Robert J Ferderer |
Metallic Minerals | Geophysics | Aeromagnetic | DNR | Report (.pdf, 2 MB) |
| 1991 | Report 280 Regional Survey of Buried Glacial Drift, Saprolite and Precambrian Bedrock in Lake of the Woods County, Minnesota; T157N-158N R32W-35W, T159N-160N R31W-36W; references; 202 pages, 2 plates. (Digital data set available.) |
Metallic Minerals | Geochemistry | Glacial Drift | DNR | Report, Maps, & Data |
| 1991 | Report 278 Archean Drill Core Description and Assay in Lake of the Woods County, Minnesota; discussion and analysis of 45 drill cores from T157N R33W & 34W, T158N R33W & 34W, T159N R33W & 36W, T160N R31W & 36W; references; 180 pages. |
Metallic Minerals | Geologic Drilling | Examination & Assay | DNR | Report and Data |
| 1989 | Report 267 Minnesota Minerals Database Project: Report on Preliminary Systems Analysis; feasibility study towards creating an inter-agency, unified minerals database; 85 pages. |
Metallic Minerals | Minerals Database | Feasibility | DNR | Report |
| 1989 | Report 264 1988-1989 Geodrilling Report; Hubbard, Becker, Koochiching, Beltrami & St. Louis counties; T58N R14W, T67N R24W, T141N R36W, T142N R35W & R37W, T153N R27W, T155N R26W & 27W, T156N R36W; references; 115 pages. |
Metallic Minerals | Geologic Drilling | Examination & Assay | DNR | Report & Data |
| 1989 | Report 263 A Regional Geochemical Survey of Glacial Drift Drill Samples Over Archean Terrane in the Effie Area, Northern Minnesota; T149N-151N R25W-27W, T61N-65N R25W-27W, Itasca & Koochiching counties; 382 pages (two volumes), 2 plates. |
Metallic Minerals | Geochemistry | Glacial Drift | DNR | Report, Maps, & Data |
| 1989 | Report 262 1989 Glacial Drift Geochemistry for Strategic Minerals; T59N-61N R7W-11W; references, element contour maps; 275 pages (two volumes), 3 plates. Tabular data converted to GIS data in 2010 |
Metallic Minerals | Geochemistry | Glacial Drift | DNR | Report, Maps, & Data |
| 1989 | Report 255-1/265/266 1988-1989 Drill Core Repository Sampling Project: 255-1 Duluth Complex, 265 Soudan Mine, 266 Archean Greenstone); analysis of drill core from Duluth complex,Soudan mine, & greenstone terranes; references; 343 pages, 2 plates. |
Metallic Minerals | Geologic Drilling | Examination & Assay | DNR | Report, Maps, and Data |
| 1987 | Report 255 Drill Core Evaluation for Platinum Group Mineral Potential of the Basal Zone of the Duluth Complex, Minnesota; evaluation of selected drill cores from Duluth complex for PGE, T57N-62N R11W-14W; references; 138 pages, 3 plates. |
Metallic Minerals | Geologic Drilling | Examination & Assay | DNR | Report and Maps |
| 1988 | Report 252 Regional Survey of Buried Glacial Drift Geochemistry Over Archean Terrane in Northern Minnesota; 9 Twps in Koochiching & St. Louis counties; 386 pages (two volumes), 2 auxiliary plates. Digital data and sample list available. |
Metallic Minerals | Geochemistry | Glacial Drift | DNR | Report, Maps, and Data |
| 1987 | Report 251 1986-1987 Geodrilling Report; DNR Drill Core from T46N R25W, T46N R28W, T52N R15W, T59N R12W, T56N R14W, T57N R12W; references; 179 pages. |
Metallic Minerals | Geologic Drilling | Examination & Assay | DNR | Report and Data |
| 1986 | Report 246 Esker Prospecting Over the Duluth Complex in Northeastern Minnesota; stream sediment exploration techniques for Pt-Pd, Au-Ag, Ti, Cr, Cu & Ni; references; 26 pages, 1 plate. |
Metallic Minerals | Geochemistry | Glacial Drift & Stream | DNR | Report, Maps, and Data |
| 1985 | Report 242 1984-1985 Geodrilling Report; DNR Drill Core from T70N-71N R23W, T52N R15W, T55N R13W, T56N R18W, T57N R13W, T57N R11W, T59N R9W, T60N R10W-11W; references; 75 pages, 17 plates (microfiche). |
Metallic Minerals | Geologic Drilling | Examination & Assay | DNR | Report, Maps, and Data |
| 1986 | Report 241-4 Lithogeochemistry of Keweenawan Igneous Rocks: A final Report to the Minnesota Department of Natural Resources. |
Metallic Minerals | Geochemistry | Keenawan Igneous Rocks | DNR | Report |
| 1986 | Report 241-2 Relationship of Structural Geology of the Duluth Complex to Economic Mineralization; 165 pages, 7 plates. |
Metallic Minerals | Mineral Evaluation | Duluth Complex | DNR | Report, Maps, and Data |
| 1985 | Report 241-1 Saline Waters as Indicators of Economic Mineralization; report on 21 wells in Cook, Lake & St. Louis counties, portions near Lake Superior; 38 pages. |
Metallic Minerals | Geochemistry | Water Well | DNR | Report |
| 1985 | Report 236-2 Reconnaissance Scale Well Water Geochemical Survey of Central Minnesota; portions of Pine, Carlton, Aitkin, & Crow Wing counties; references, element maps; 36 pages, 12 plates (microfiche). |
Metallic Minerals | Geochemistry | Water Well | DNR | Report and Maps |
| 1985 | Report 236 Lake Sediment Geochemical Survey of East-Central Minnesota; reconnaissance scale organic-rich lake sediment geochemical survey in Cass, Crow Wing, Aitkin & Carlton counties; references, element maps; 32 pages, 12 plates (microfiche). |
Metallic Minerals | Geochemistry | Lake Sediment | DNR | Report, Maps, and Data |
| 1985 | Report 231 A Compilation of Ore Mineral Occurrences, Drill Core, and Testpits in the State of Minnesota; literature search on publicly reported mineral occurrences; 360 pages, 4 plates. |
Metallic Minerals | Mineral Evaluation | Mineral Occurrences | DNR | Reports, Maps, and Data |
| 1981 | Report 201 Geological, Geophysical, and Geochemical Surveys of Lake, St. Louis and Cook Counties, Minnesota: for the 1980 Drilling Project; various locations in T50N-63N R3E-14W; 13 pages, 12 plates (microfiche). |
Metallic Minerals | Mineral Evaluation | Various | DNR | Reports and Maps |
| 1982 | Report 171 Lake Sediment Exploration Geochemical Survey of Portions of Lake and St. Louis Counties, Minnesota; references; 31 pages, 11 plates (microfiche). |
Metallic Minerals | Geochemistry | Lake Sediment | DNR | Reports, Maps, and Data |
| 1978 | Map Set 153 Mineral Compilation of Eastern Marshall County, Minnesota; 2 maps. |
Metallic Minerals | Geologic Mapping | Mineral Compilation | DNR | Maps (.pdf, 2 MB) |
| 1979 | Map Set 152 Organic-Rich Lake Sediment Exploration Geochemical Pilot Survey of Southern Crow Wing and Morrison Counties, Central Minnesota; 1 map. |
Metallic Minerals | Geochemistry | Lake Sediment | DNR | Download map (.pdf, 1 MB). Also See Report 376 GIS compilation |
| 1979 | Map Set 151 Chemical Analysis of Samples from McComber Mine, St. Louis County, Minnesota; 1 map. |
Metallic Minerals | Geologic Mapping | Chemical Analysis | DNR | Download map (.pdf, 1 MB) |
| 1977 | Map Set 149 Geophysical and Geochemical Surveys of Indus School Site, Northwestern Koochiching County, Minnesota; 1 map, 15 data sheets. |
Metallic Minerals | Geologic Mapping | Various-Geophysical & Geochemistry | DNR | Not Yet Digital |
| 1977 | Map Set 148 Pilot Survey of Uranium in Organic-Rich Lake Sediment, Ely Region, Northeastern Minnesota; 2 maps, 1 data sheet. |
Metallic Minerals | Geochemistry | Lake Sediment | DNR | Maps (.pdf, 1 MB). Also see Report 376 GIS compilation |
| 1978 | Map Set 146 Geophysical Surveys of an Area Southwest of Indus, Koochiching County, Minnesota; 7 map sheets. |
Metallic Minerals | Geologic Mapping | Geophysics | DNR | Maps (.pdf, 3 MB) |
| 1978 | Map Set 143 Mineral Compilation of Eastern Roseau County, Minnesota; 2 maps. |
Metallic Minerals | Geologic Mapping | Mineral Compilation | DNR | Maps (.pdf, 2 MB) |
| 1982 | Report 138-2 Lake Sediment Geochemical Survey of Cook County, Minnesota; references; 39 pages, 11 plates on microfiche. |
Metallic Minerals | Geochemistry | Lake Sediment | DNR | Report and Data |
| 1977 | Map Set 138 Organic-Rich Lake Sediment Exploration Geochemical Pilot Survey, Cook County, Minnesota; 2 maps, 1 data sheet. |
Metallic Minerals | Geochemistry | Lake Sediment | DNR | Maps (.pdf, 2 MB). See also Report 376 GIS compilation |
| 1977 | Map Set 134 Burntside Lake Area - Gyttja Lake Sediment Geochemical Survey; 3 maps. |
Metallic Minerals | Geochemistry | Lake Sediment | DNR | Maps not available online yet. See Report 376 GIS compilation |
| 1977 | Report 132-1 Mineral Evaluation of the Lake Superior Region of Northeastern Minnesota - A Progress Report on Field Surveys; 6 pages. |
Metallic Minerals | Mineral Evaluation | Field Surveys | DNR | Report and Data |
| 1977 | Map Set 117-1 Organic-Rich Lake Sediment Exploration Geochemical Pilot Survey, Aitkin County, Minnesota; 2 maps, 1 data sheet. |
Metallic Minerals | Geochemistry | Lake Sediment | DNR | Maps (.pdf, 1 MB). See also Report 376 GIS compilation |
| 1977 | Report 109 Pilot Study on Stream Sediment Exploration Geochemistry, Filson Creek, Lake County, Minnesota; T62N R10W-11W; 32 pages. |
Metallic Minerals | Geochemistry | Stream Sediment | DNR | Report |
| 1978 | Report 108-3 Pilot Study on A-Horizon Soil Exploration Geochemistry, Birch Lake Area, Lake County, Minnesota; T61N-62N R11W; 9 pages. |
Metallic Minerals | Geochemistry | Soil | DNR | Report |
| 1977 | Report 108-2 Pilot Study on Soil Exploration Geochemistry, Birch Lake Area, Lake County, Minnesota; T61N-62N R11W; 19 pages. |
Metallic Minerals | Geochemistry | Soil | DNR | Report |
| 1977 | Report 108-1 Pilot Study on Peat Exploration Geochemistry, Birch Lake Area, Lake County, Minnesota; T61N R11W; references; 10 pages. |
Metallic Minerals | Geochemistry | Peat | DNR | Report |
| 1977 | Report 107 Geophysical and Geochemical Survey, Skeleton Lake Area, St. Louis County, Minnesota; discussion of EM & magnetics, organic lake & stream sediments in T61N R14W; 6 pages (includes 6 map sheets). |
Metallic Minerals | Various - Geochemistry and Geophysics | Various - Lake Sediments, EM, & Magnetics | DNR | Report, Maps, and Data |
| 1976 | Report 104 Preliminary Report on Nineteen Digestion Methods Tested on Various Geochemical Sample Medias; 17 pages. |
Metallic Minerals | Geochemistry | Methodologies | DNR | Report |
| 1977 | Report 093 Mineral Resources of a Portion of the Duluth Complex and Adjacent Rocks in St. Louis and Lake Counties, Northeastern Minnesota; Cu-Ni resource estimate for 42 sq. miles in T57N-62N R10W-14W; references; 49 pages. |
Metallic Minerals | Mineral Evaluation | Cu-Ni | DNR | Report |
| 1976 | Map Set 087 Mineral Compilation of Southwestern Koochiching County, Minnesota; 2 maps. |
Metallic Minerals | Geologic Mapping | Mineral Compilation | DNR | Maps (.pdf, 2 MB) |
| 1976 | Map Set 086 Mineral Compilation of Southern Beltrami County, Minnesota; 3 maps. |
Metallic Minerals | Geologic Mapping | Mineral Compilation | DNR | Maps (.pdf, 3 MB) |
| 1977 | Map Set 073-3 Gyttja Lake Sediment Exploration Geochemical Survey of Lake Vermilion-Burntside Lake-Ely Area, St. Louis and Lake Counties, Minnesota; 11 maps. |
Metallic Minerals | Geologic Mapping | Geochemistry- Lake Sediment |
DNR | See Report 376 GIS compilation |
| 1980 | Report 073-3-1 Gyttja Lake Sediment Exploration Geochemical Survey of E. L. Vermilion-Ely Area, St. Louis Co. and Lake Co., MN; organic-rich lake sediment survey in T61N-63N R11W-16W; element maps & references; 22 pages. |
Metallic Minerals | Geochemistry | Lake Sediments | DNR | Report and Data |
| 1977 | Map Set 071-3 Organic-Rich Lake Sediment Exploration Geochemical Pilot Survey, Itasca County, Minnesota; 1 map, 1 data sheet. |
Metallic Minerals | Geologic Mapping | Geochemistry- Lake Sediment |
DNR |
Download map (.pdf, 1 MB). See also Report 376 GIS compilation |
| 1977 | Map Set 041 Geologic and Geophysical Surveys in the Manitou Rapids Area, Koochiching County, MN; 4 maps, 23 sheets of geophysical data. |
Metallic Minerals | Geologic Mapping | Geophysical - Various Types | DNR |
Datasheets (.pdf, 15 MB) |
| 1976 | Report 036-8 Geophysical Surveys Conducted in Northwestern Koochiching County, Minnesota; brief discussion of EM, resistivity, IP and magnetic results in T159N R25W-27W; 10 pages. |
Metallic Minerals | Geophysics | Geophysical - Various Types | DNR | Report |
| 1976 | Report 036-7 Exploration Geochemistry of Quaternary Deposits in Northwestern Koochiching County, Minnesota; discussion of till & soil sampling in T158N-160N, R25W-30W; references; 69 pages. |
Metallic Minerals | Geochemistry | Glacial Drift | DNR | Report |
| 1976 | Report 026 Sulfides in the Birchdale-Indus Area, Koochiching County, Minnesota; a discussion of the geophysics, geology and sulfide mineralization in T158N-160N, R26W-28W; references; 21 pages. |
Metallic Minerals | Mineral Evaluation | Various | DNR | Report |