Filters: Tags: Tailings (X) > Categories: Data (X)
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Version 10.0 of these data are part of a larger U.S. Geological Survey (USGS) project to develop an updated geospatial database of mines, mineral deposits, and mineral regions in the United States. Mine and prospect-related symbols, such as those used to represent prospect pits, mines, adits, dumps, tailings, etc., hereafter referred to as “mine” symbols or features, have been digitized from the 7.5-minute (1:24,000, 1:25,000-scale; and 1:10,000, 1:20,000 and 1:30,000-scale in Puerto Rico only) and the 15-minute (1:48,000 and 1:62,500-scale; 1:63,360-scale in Alaska only) archive of the USGS Historical Topographic Map Collection (HTMC), or acquired from available databases (California and Nevada, 1:24,000-scale...
Categories: Data,
Data Release - Revised;
Types: ArcGIS REST Map Service,
ArcGIS Service Definition,
Downloadable,
Map Service;
Tags: Alabama (AL),
Alaska (AK),
Arizona (AZ),
Arkansas (AR),
California (CA),
The Missouri Geological Survey (MGS) mineral resource file collection is a one-of-a-kind collection, dating to the early 1900s, that contains unique geologic information not recorded elsewhere. Due to the historic nature of the collection the data it contains would be impossible to replicate today. These data are invaluable to present day geologic research, field and mine-related projects as well as engineering and construction projects. The files not only contain irreplaceable physical geologic information, but document the evolving geologic interpretations and nomenclature during a dynamic time in the science of geology. The files are scanned and have a subject inventory. The scans are available from the MGS in...
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