Back to All Events

Downtown PDX Geology North Tour

  • Pioneer Square (across from Pioneer Courthouse) 701 Southwest 6th Avenue Portland, OR, 97204 United States (map)

Ancient Walls II: A Geological Walking Tour of Downtown Building Stone

Downtown PDX North Tour

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. 

Bring good walking shoes and sunscreen. Water and snacks are advisable. Bathroom access is limited downtown during the weekend. Open to public. Children under 12 must be supervised. 

Refunds are available in the event of illness or emergency.

We'll meet at Pioneer Courthouse Square, across from the 6th Avenue Pioneer Courthouse entrance.