Jefferson

Pierre Shale (gray) exposed along St. Vrain Creek in Weld County, Colorado. Photo credit: Stephen Keller for the CGS.

Geology

March 15, 2022

Recent reports published

OF-20-11 Alkaline Complexes of the Wet Mountains Area, Colorado: A Geological Summary, Bibliography, and Data Compilation…

A 3610 g slice of the Bear Creek meteorite being held for scale that was formerly in the Jurgen Nauber Meteorite Collection (JNMC) in Zurich, Switzerland. Photo credit: Peter Marmet.

General

March 9, 2022

Tale of the Bear Creek Meteorite, Jefferson County, Colorado

By Matthew Morgan, Deputy Director, Colorado Geological Survey and Gary Curtiss, Lakewood geologist and meteorite collector A…