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The Minnesota Department of Natural Resources (DNR) completed an inventory of the holdings of the DNR Drill Core Library (DCL). The Drill Core Library facility contains geologic materials including drill core, rotasonic samples, cuttings, pulps and rejects, processed materials, peat, thin sections, thin section billets and hand samples. The inventory project also included identifying space and preservation issues, beginning the process of centralizing and standardizing the administrative databases for all holdings, and making more information within the DCL publicly available.
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In 2015, approximately 10 million acres of Federal lands across six western states were proposed for withdrawal from mineral entry by the Bureau of Land Management (BLM) in order to conserve habitat critical for the greater sage-grouse. As a result, the U.S. Geological Survey (USGS) launched the Sagebrush Mineral-Resource Assessment (SaMiRA) project in late-2015 to provide BLM with an assessment of the locatable minerals and an evaluation of the leaseable and saleable minerals within the proposed withdrawal areas. BLM provided Legacy Rehost 2000 System (LR2000) spatial data to the USGS on March 6, 2016 to help identify areas containing mineral leases and claims. The LR2000 system reports BLM land and mineral-use...
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The polygon (vector) shapefiles represent Public Land Survey System (PLSS) sections, or 1-square mile areas of land, with information about Bureau of Land Management (BLM) land and mineral use authorizations for non-energy solid minerals. The land areas specified by BLM authorizations vary in size and orientation, and may cross one or more PLSS section boundaries. For spatial consistency, the information was aggregated to the square mile PLSS section boundary. The original source data from BLM Cases Recordation database (LR2000) were specific to the day they were generated (March 6, 2016) and subsequent data pulls will likely be different.


    map background search result map search result map Bureau of Land Management's Land and Mineral Legacy Rehost System (LR2000) mineral use cases for the Sagebrush Mineral-Resource Assessment, Idaho, Montana, Nevada, Oregon, Utah, and Wyoming BLM LR2000 non-energy solid mineral authorizations for the Sagebrush Mineral-Resource Assessment (SaMiRA) aggregated by Public Land Survey System (PLSS) section boundaries Minnesota Drill Core Library Inventory Minnesota Drill Core Library Inventory BLM LR2000 non-energy solid mineral authorizations for the Sagebrush Mineral-Resource Assessment (SaMiRA) aggregated by Public Land Survey System (PLSS) section boundaries Bureau of Land Management's Land and Mineral Legacy Rehost System (LR2000) mineral use cases for the Sagebrush Mineral-Resource Assessment, Idaho, Montana, Nevada, Oregon, Utah, and Wyoming