Shale from Muddy Mountains Mining District, Muddy Mountains, Clark County, Nevada, USA
USA | |
| (2005) Mineral Resources Data System (MRDS), US Geological Survey. (1936) Mineral resources of the region around Boulder Dam. Bulletin Vol. 871. US Geological Survey doi:10.3133/b871 |
(2005) Mineral Resources Data System (MRDS), US Geological Survey. |