Published By U.S. Geological Survey, Department of the Interior
Issued almost 10 years ago
US
beta
Summary
Description
This map layer includes miscellaneous industrial minerals operations in the United States. The data represent commodities covered by the Minerals Information Team (MIT) of the U.S. Geological Survey. The mineral operations are plants and (or) mines surveyed by the MIT and considered currently active in 2003. This is a replacement for the July 2004 map layer.