Rocks and deposits
Solid masses that make up the earth's crust as well as accumulations of materials. Use for major rock types and unconsolidated deposits. For deposits of economic value, see related terms.
- Western Region Geology and Geophysics Center [More info]
- Overview of the research of this organizational unit with links to projects and activities and to geologic information on the western U.S.
- Yosemite Valley geologic story [More info]
- Site describes the present understanding of the various geologic processes that contributed to the valley's creation. Links to Yosemite Valley's geologic maps.