Our two-person team loaded the car with a GPS, a drone, notebooks, sample bags, a trowel and a flat spatula lovingly called a ...

Roughly 37 miles east of Flagstaff, Meteor Crater—formally known as Barringer Crater—was formed approximately 50,000 years ago by a 150-foot-wide iron meteorite. As one of the best-preserved impact ...

How does it take for an animal to make its mark in history particularly when its bones are as delicate as a potato chip? Eotephradactylus mcintireae’s answer is a mix of volcanic ash, river ...

Placer Gold Deposits of Arizona. Geological Survey Bulletin 1355. U.S. Government Printing Office, Washington, D.C. Medora H. Krieger. 1965. Geology of the Prescott and Paulden Quadrangles, Arizona.

Sources: John R. Cooper and Leon T. Silver (1964), “Geology and Ore Deposits of the Dragoon Quadrangle, Cochise County, Arizona”; V.B. Dale, L.A. Stewart and W.A. McKinney (1960), “Tungsten ...

The story involves an inland sea, powerful rivers, the shearing of the Earth’s crust along major fault systems, magmatic intrusions and volcanic eruptions.

Massive salt formations and their proximity to pipeline systems and power plants make Arizona attractive for natural gas storage.

A seven-and-one-half minute quadrangle is a geological survey-produced topographic map covering an area spanning seven and one-half minutes of latitude and seven and one-half minutes of longitude.

SWEETWATER COUNTY — The Wyoming State Geological Survey (WSGS) has published a new geological bedrock map titled Preliminary Geologic Map of the Firehole Canyon 30’ x 60’ Quadrangle ...

Preliminary Geologic map of the Firehole Canyon 30’ x 60’ Quadrangle, showing the region’s complex geology, including parts of the Rock Springs Uplift, Bridger Basin, and Uinta Mountains.

A geologist who has studied Southeast Alaska’s rocks and minerals for decades is creating a new geologic map of the region. That map could have a wide range of applications — from educating ...

Earthquakes are often thought of as a thing that mainly happens in California, but they can and do happen in Arizona. Here's what to know.