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Minnesota Drill Core Library Inventory 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. Categories: Collection; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Drill hole data, Mineral Exploration, Mineral materials, drill core data, ndc_collection Collection of Exploration, Scientific, and Engineering Boring Hole Locations in Minnesota Location data for exploratory, sciencific, or engineering borings conducted statwide since the early 1900s. Drill Core and/or other samples from a large number of these borings are stored in the DNR's Drill Core Library in Hibbing, Minnesota. For more information on the drill core library please vist the DNR's webpage: http://www.dnr.state.mn.us/lands_minerals/dc_library.html Categories: Collection; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Geospatial, Minnesota, Web map application, ndc_collection Collection of Mineral Deposits and Occurrences in Minnesota This document compiles the location of mineral deposits and resources in Minnesota containing commodities that were identified as critical minerals by the United States Geological Survey (USGS) and Department of the Interior in their 2022 Final List of Critical Minerals. Categories: Collection; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Critical Minerals, Mineral Exploration, ndc_collection