Callan Bentley
Callan Bentley teaches geology at Northern Virginia Community College and is a contributing editor to EARTH Magazine. He is a GSA Fellow and the president of the two-year-college division of the National Association of Geoscience Teachers.
Travels in Geology: Touring the Capital Geology of Washington, D.C.
The nation's political center is also home to a rich geological history, found in both natural rock outcrops and the diverse suite of evocative building stones and monuments.
May 30, 2019
