'BLM edition, 1994.' 'Surface management status; mineral management status.' '1:100,000-scale topographic map showing highways, roads and other manmade structures; water features; contours and elevations in meters with conversions to feet; BLM recreation sites.' 'Edited and published by the Bureau of Land Management. Base map prepared by the U.S. Geological Survey.' I53:11/4-2
Photographs taken circa 1907-1914 in the Las Vegas, Nevada area, including Fort Callville, and during travels in California; Washington State; Idaho; Montana; and Oregon, with emphasis on Yosemite National Park and Yellowstone National Park. Album also features photographs taken at the 1911 Yakima (Washington) State Fair and in Salt Lake City, Utah, and Goodsprings, Nevada during the same period.
Photograph in upper left corner of this page captioned "Old school house at Bingham Ut 1900." Photograph in upper right corner captioned "Asphaltene mine, Fort Duschene, Ut." Photograph in lower right corner captioned "Utah valley."
An open-pit copper mine located in Ruth, Nevada. Surface mining is done by removing (stripping) surface vegetation, dirt, and, if necessary, layers of bedrock in order to reach buried ore deposits. Techniques of surface mining include: open-pit mining, which is the recovery of materials from an open pit in the ground, quarrying, identical to open-pit mining except that it refers to sand, stone and clay; strip mining, which consists of stripping surface layers off to reveal ore/seams underneath; and mountaintop removal, commonly associated with coal mining, which involves taking the top of a mountain off to reach ore deposits at depth. Most (but not all) placer deposits, because of their shallowly buried nature, are mined by surface methods. Finally, landfill mining involves sites where landfills are excavated and processed.