About the Rocky Mountain Section

Rocky Mountain Section

The Rocky Mountain Section has been a thriving part of The Geological Society of America since 1948. Please explore the links at right and below to learn more about the benefits we offer our Section members.

RM Newsletter - Spring 2016


2016–2017 Section Officers

Officers (3 Members)

Terms: Chair—1 year, Vice-Chair—1 year, Secretary—4 years


Janet Dewey
University of Wyoming

Chair-Elect:Thomas Williams

Thomas Williams
University of Idaho


Kevin Mahan
University of Colorado-Boulder

First year of 4-year term 

Shannon Mahan
US Geological Survey

Management Board (5 Members)

Includes the section officers, the immediate past chair, and one voting member appointed by the chair.

Past Chair:

Amy Ellwein
Rocky Mtn Biol Lab (RMBL)


Ranie M. Lynds
Wyoming State Geological Survey

Art Snoke
University of Wyoming

GSA Councilors:

Neil Fishman, Claudia Mora

Student Advisory
Council Representative:

David Terrill
University of Calgary

Membership 4,281 voting members of the Section as of 29 December 2017.


In the United States:

The states of Colorado, Idaho, Montana, New Mexico, North Dakota, South Dakota, Utah, Wyoming, and that part of Arizona north of 35 degrees North Latitude.

In Canada:

The provinces of Alberta and Saskatchewan.

In Mexico:

The state of Chihuahua.