Geological Society of the Oregon Country (GSOC)
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Geological Society of the Oregon Country (GSOC)
  • Home/
  • Calendar/
  • Lectures/
  • Field Trips/
  • About/
    • History
    • GSOC Slideshow
    • Our Past Presidents
    • Past Events
    • GSOC Bylaws
    • PDX Bike GeoTour
    • Membership List (for members only)
    • Mailchimp Signup
    • New Page
  • Articles/
  • Newsletters/
  • Contact/
  • Membership/
Geological Society of the Oregon Country (GSOC)

Downtown PDX Geology Beta

Geological Society of the Oregon Country (GSOC)
  • Home/
  • Calendar/
  • Lectures/
  • Field Trips/
  • About/
    • History
    • GSOC Slideshow
    • Our Past Presidents
    • Past Events
    • GSOC Bylaws
    • PDX Bike GeoTour
    • Membership List (for members only)
    • Mailchimp Signup
    • New Page
  • Articles/
  • Newsletters/
  • Contact/
  • Membership/
March 08, 2017

Standard Plaza

March 08, 2017/ webmaster

Granite street level
Travertine and slate lobby

March 08, 2017/ webmaster/

webmaster

  • Gus Solomon Courthouse
  • Multnomah County Courthouse
  • fossils
  • gneiss
  • granite
  • limestone
  • marble
  • metamorphic
  • sedimentary

Our Next Downtown Tours

Featured
Downtown PDX Building Stone Geology Tour (North Tour)
Oct 5
Oct 5, 2019
Pioneer Square (across from Pioneer Courthouse)
Downtown PDX Building Stone Geology Tour (North Tour)
Oct 5, 2019
Pioneer Square (across from Pioneer Courthouse)

Come see billion-year-old building stones and the fossils hidden under our feet. Join us for a two-hour outdoor walking tour of downtown Portland’s geological mysteries and oddities. This tour is open to the public. 

Oct 5, 2019
Pioneer Square (across from Pioneer Courthouse)

GSOC • P.O. Box 907 • Portland, OR 97207 • webmaster@gsoc.org