Mineral resource areas of the Yellowstone River Basin, Montana and Wyoming

Mineral resource areas are defined as those areas with a high likelihood of containing occurrences of valuable mineral deposits. A variety of sources of minerals information were consulted in compiling a digital map of mineral resource areas for metallic minerals in the Yellowstone River Basin. Source scales varied but were no smaller than 1:500,000. The data are intended for river-basin level assessment and general analysis and are not suitable for site-specific analyses.