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

Summer is for Field Trips

Mount Hood - September 14


The Visiting Scholar Program

Newberry volcano: A sleeping giant with two bubbling lakes

Johan Varekamp, Wesleyan University

Saturday, August 10, 2019 - Deschutes Brewery - Mountain Room - 901 SW Simpson

Doors open at 5:30 PM – food and beverages available

Student poster session at 6:00 PM  -  Presentation at 7:00 PM

Wesleyan University professor Johan Varekamp researches volcanic lakes around the world, including Paulina Lake and East Lake at Newberry Volcano. Join him for an overview of his research at Newberry, including volcanic venting of mercury and CO2 in East Lake, and hot spring activity at Paulina Lake as an analog for precambrian banded iron formations.

For more about Dr. Varekamp’s research: A tale of two lakes: the Newberry Volcano twin crater lakes, Oregon, USA

Wesleyan University student poster session at 6:00 PM

Haley Brumberger and Sabrina Koetter will have two posters about ostracods (tiny shrimp!) in Paulina Lake and how they preserve a record of lake water from the past.

Christina Cauley will have a poster on iron and silica rich sediments from Paulina Lake. Christina recently received a NASA Space Consortium grant for her research project “Chemistry and Biology of Giant Hydrothermal Mounds in Paulina Lake, Oregon.”

Geoscience Events & Activities by Others

University of Oregon

Continuing & Professional Education

Reduced Registration fee for COGS Members

Central Oregon Volcanoes
Mt Bachelor and the Three Sisters
Instructor(s): Daniele McKay
August 9-10,  2019


October 25-26, 2019 at the Riverhouse on the Deschutes, Bend, Oregon