Filters: Tags: deposit type (X) > Types: Citation (X)

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Locatable Mineral Assessment Tracts for the U.S. Geological Survey Sagebrush Mineral-Resource Assessment Project The polygon (vector) feature class represents locatable mineral resource assessment tracts (tracts of land) associated with the Department of the Interior (DOI) Sagebrush Focal Areas (SFAs) in Montana, Wyoming and Utah, central Idaho, and the Oregon-Nevada-Idaho border area. The mineral-resources tracts are geographic areas that were assessed by the USGS and were determined to be geologically favorable for a deposit type of interest to a depth of 1 kilometer. Qualitative assessment methods outlined by the Bureau of Land Management (BLM) were used to develop tract boundaries and to assign a level of mineral-resource potential and certainty to each tract. The general process included (1) identifying possible mineral... Categories: Data; Types: ArcGIS REST Map Service, ArcGIS Service Definition, Citation, Downloadable, Map Service; Tags: Idaho (ID), Montana (MT), Nevada (NV), Oregon (OR), USGS Science Data Catalog (SDC), All tags... Utah (UT), Western United States, Wyoming (WY), clay deposits, deposit type, economic geology, environment, gem resources, geoscientificInformation, locatable mineral tract, metallic mineral resources, mineral commodity, mineral occurrence, mineral resource assessment, mineral system, mineralogy, mining and quarrying, native species, nonmetallic mineral resources, resource exploration, sagebrush focal area, Fewer tags