In 1888, Blandy was appointed Arizona's territorial geologist, a position created five years after Gov. Frederick A. Tritle asked Congress to establish a geological survey for the territory.

This week, volunteers will load up 800,000 pages of mining reports, 10,000 maps, and 7,500 photos at the Geological Survey’s Phoenix office, which is closing.

RELATED: USGS: Largest earthquake in swarm shakes Arizona on Friday There have been a total of 505 earthquakes since January 1, 1970, with the highest magnitude quake (5.3) occurring in 1993 ...

The Sanborn Map Company, Inc. (Sanborn) builds public-private partnership to support U.S. Geological Survey (USGS) 3D Elevation Program (3DEP) mission ...