Skip to main content
U.S. flag

An official website of the United States government

Ken Pierce in the field with a large glacial erratic in the Clarks Fork moraines

Detailed Description

Ken Pierce in the field with a large glacial erratic in the Clarks Fork moraines taking detailed notes and annotating a map in progress. (Photo taken in 2003 by Joe Licciardi).

Sources/Usage

Public Domain.