Geological Society of the Oregon Country

There is a GSOC logo on both sides of the new GSOC mugs.

There is a GSOC logo on both sides of the new GSOC mugs.


The Geological Society of the Oregon Country (GSOC) is a non-profit organization based in Portland, Oregon. The society is dedicated to the study of geology in the Pacific northwest and is open to persons with all levels of education and professional backgrounds.


  • Don't forget! GSOC Membership Dues - are due in January. Dues paid in December are good for the following year.
  • GSOC Friday Night Meetings - normally held 7:30 pm, Room S17 Cramer Hall, Portland State University, on the second Friday of the month (except July and August). ROOM S17 IS ON THE SUB-BASEMENT LEVEL OF CRAMER HALL, DIRECTLY BELOW THE GEOLOGY DEPARTMENT’S MAIN OFFICE. 
  • GSOC is proudly selling its new logo mugs. The mugs feature a GSOC logo on each side of the cup, plus the statement "Supporting Geology in the Pacific Northwest since 1935" and the website address "" opposite the handle. Price has been reduced to $5 each. Contact Richard Bartels or Carol Hasenberg for more information.
  • GSOC Field Trips: Our first 2014 field trip is now posted!
  • New Electronic Mailing List for GSOC Members

    GSOC will send electronic newsletters every two months to members. The mailing list will also provide a means to send occasional messages in case of unexpected changes or cancellations of GSOC events, such as lectures or field trips. Members will still receive the paper newsletter in the mail. If you believe that we don't have your email address, and would like to be included in this list, please send an email to Paul Edison-Lahm at with "subscribe" in the subject line.

    Likewise, if you prefer NOT to receive the newsletter and messages electronically, please send an email with your name and "unsubscribe" in the subject line.

  • Link to a review of the May 2013 GSOC Field Trip "A Tale of Two Calderas"
  • Current GSOC Newsletter
  • GSOC Newsletter Archives
  • Follow us on at GeoSociety Oregon

GSOC inclement weather meeting policy is...if weather closes Portland schools, GSOC meetings are also cancelled.