This site from the US Geologic Survey contains interactive online spatial data maps of mineral resources for the US, Colorado, Hawaii, Alaska, and the world. Each map provides "geologic, lithologic, geochemical, geophysical, and mineral deposit information in consistent, standard formats." By clicking on one of the map-viewing options, users may select from a list of data sets to be spatially represented on a map. Examples of available spatial data include active mines, cities, federal lands, geologic faults, value of mineral production, type of land cover, sediment chemistry, and more. Also available are spatial metadata files which contain detailed FAQs and documents describing the data found at this site.
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