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

Upcoming Presentation

Click HERE to register for this Zoom presentation

Tuesday, April 27

Kyle Gorman, Region Manager, Oregon Water Resources Department

Water in the Deschutes Basin: 2020 Hindsight – What Happened?

In the fall of 2020 the Deschutes River took on a cloudy green color from silt scoured from the bottom of Wickiup Reservoir. Water levels reached unprecedented lows as the reservoir was drained for the first time since the dam was built in 1949. In this presentation Kyle Gorman, Regional Manager for the Oregon Water Resources Department, will reflect on what happened in 2020 and the projections for water resources in 2021.

Recent Presentations

click HERE for the recorded Presentation 

Tuesday March 23rd

William Hawley, Lamont-Doherty Earth Observatory

The fragmented death of the Farallon Plate

Click HERE for MORE Past Presentations

Geoscience Events & Activities by Others

Friday April 9th Zoom Lecture

Bruce Bjornstad

Ice Age Floodscapes of the Pacific Northwest

The Cascade Volcanoes: A Living Laboratory for Pure and Applied Geoscience

Speaker: Isaac Pope

Join us for a webinar on April 12, 2021 at 3:00 PM EDT.

Free for AEG members / $20 for Non-Members 

click HERE for details & registration

Friday, April 30 @ 10 a.m. to 5 p.m.

12th Annual Bretz Club Conference (Free) 


 A potpourri of the geomorphic consequences of disturbances