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Ice Age Floods *FULL*

Travel the path of the great Ice Age Floods from Missoula to Portland on this always popular geology, birding, and wildlife tour.  Our journey begins in western Montana, where a great lake once covered 3,000 square miles of land, before bursting through a massive ice dam and carving many of the geologic wonders we marvel at today. From the giant ripples of Camas Prairie to the astonishing channeled scablands of eastern Washington, the dizzying Grand Coulee, and the awesome Columbia River Gorge, this tour keeps you in the flow throughout. 

With visits to impressive wildlife reserves like the National Bison Range and Turnbull National Wildlife Refuge included, you’ll enjoy an amazing and unique natural history adventure.

Join us for a geologic tour of the Ice Age Floods!

We will travel the path from Missoula to Portland!


Trip Details

  • Trip leaders: Candace Larson & Brodie Cass Talbott
  • Fee: $1,895 members / $2,095 non-members
  • Single supplement: $395
  • Limited to 14 participants.

Trip fees include all ground transportation, double-occupancy lodging, breakfast/lunch/non-alcoholic beverages/snacks, trip materials, entrance fees, excursions, and the services of your skilled leader(s). 

Trip fees do not include airfares, dinners, and alcoholic beverages.

Notes on Accessibility: This trip will include a combination of van-based birding, short walks on well-graded trails, and some hikes on uneven ground (1-4 miles), including occasional steep stretches.

Proof of vaccination and a negative COVID test within 48 hours required.


September 18
September 24
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Erin Law