Geology General

Regulatory limits for safe levels of elements in water and foodstuffs are established by the U.S. Environmental Protection Agency and the U. S. Food and Drug Administration.
Learn what the USGS is doing to understand natural hazards and mitigate their effects on human life and property at the USGS Natural Hazards Web site, which h
The USGS Astrogeology Research Program explains that although the USGS has been involved in impact crater research, it is neither the expert facility nor ultimate authori
The Rocky Mountains are a series of mountain ranges in western North America, including parts of New Mexico, Colorado, Utah, Wyoming, Idaho, and Montana, as well as parts of several provinces in Canada.
A body of rock formed from magma migrating and solidifying deep in the subsurface is called a pluton or an igneous intrusion.