Jon E. Spencer

Thumbnail image of Compilation Geologic Map of the Ray-Superior area, Central Arizona report cover

This geologic map was produced to compile and reinterpret published geologic information, and present the result of new geologic mapping in the Ray-Superior area. This data set serves as the basis for ongoing efforts to better understand the geologic history of this area, particularly with respect to the distribution and origin of mineral deposits.

Thumbnail image of Geologic Map of the Picketpost Mountain and the Southern Part of the Iron Mountain report cover

The Picketpost Mountain and Iron Mountain 7.5' quadrangles are located east of the Phoenix metropolitan area and are within the Basin and Range physiographic and tectonic province of southwestern North America.

Media Point of Contact

Amanda Oliver
amanda.oliver@usda.gov

Apache Leap Special Management Area
Apache Leap SMA website