Central Oregon Geoscience Society


COGS is a Central Oregon-based non-profit organization promoting a greater awareness and understanding of the geological sciences through technical presentations, educational outreach to schools, and field trips

Monthly Presentations

Regular monthly presentations are the 4th Tuesday of the month, September through May

Watch Recent Presentations

Click HERE for Past Presentations

COGS Logo Contest

The winner will receive a volcano pint glass or tumbler of their choice, a 1-year COGS membership, and acknowledgement at COGS meetings and on the website.


Consider scalability and functionality across a variety of uses (media, swag, etc.)
The contest is open to everyone and multiple designs can be submitted.
Designs should be easily recognizable as a COGS logo.
Designs should be representative of central Oregon geology or geologic features.
All artwork must be original and not contain any copyrighted material.

Submission process:

Email submissions by September 30th to: COGeoSoc@gmail.com

Questions? Email COGS at: COGeoSoc@gmail.com

Selection process:

The GOGS board will select the final design by October 15, 2020. The board reserves the right to not select a winner or to extend the open period for submission if no suitable entries are received.

In accordance with the continuing evolution of Governor Brown's executive orders, we have suspended field trips through June 2020. 

Geoscience Events & Activities by Others

Virtual Field Trips 

Hal Wershow, Central Oregon Community College, has created two Virtual Geology Field trips as part of his Cascades Volcanoes Class at COCC and is sharing them with COGS

Fort Rock Virtual Field Trip

Scout Camp Trail Field Trip

Local photographer Mark Darnell has created an impressive list of Google Earth flyovers that he has shared with COGS. These short videos are a great way to view some of your favorite places in Oregon from a new vantage point – and without leaving home!

Click HERE for a list of flyovers



COMET Webinar Series 21 April 2020 Jessica Hawthorne gives a COMET Webinar: Which fault zone processes could cause slow earthquakes? Constraints from scaling and atmospheric modulation 10 February 2020 Jonathan Weiss & Chris Rollins give a COMET Webinar: High-resolution velocity, strain, and earthquake hazard models in Anatolia from InSAR, GNSS and seismicity 25 November 2019 Richard Walters ...