
30 Years of IAFI’s Vision Helped Shape the Ice Age Floods National Geologic Trail
This year marks the 30th anniversary of the Ice Age





This year marks the 30th anniversary of the Ice Age

Just a short drive east of Cheney, Washington, lies Fish

We know the story…a world gripped by ice. Some twenty

The Mossback’s Northwest production team met in Thurston County last week to

The Oregon Naturalist Program at Oregon State University is partnering

New research indicates it likely won’t blow today, but one

Traveling east along Lake Roosevelt from the Grand Coulee brings

A summary of IAFI’s 2024 activities for our members and

Scientists say Axial, an undersea volcano off the coast of

The boggy landscape of the Bering land bridge may have

The Lake Roosevelt National Recreation Area serves as a striking

The Coyote Canyon Mammoth Dig is an active paleontological excavation

We’re reaching out to ask for your help. As we

Two glacial erratics in the Bitterroot Valley, the Lone Rock

It’s generally accepted that a massive Cascadia earthquake occurred along
IAFI Events
Explore and Discover How Our Amazing Region was Formed!
Field Trips, Presentations and Other Events are designed to educate, entertain and leave you with a sense of “wow” along with providing fascinating information about the Ice Age Floods.







Ice Age Floods Institute Events Inspire, Encourage Exploration, Offer Friendship and Involvement
Field Trips and Hikes are led by amateur and professional Geologists with new and amazing information to share. They are fun, exciting and informative outdoor adventures for the entire Family to enjoy!
Visit our Activities Event Calendar below for IAFI Field Trips, Hikes and other activities in your area, and go have a great time!



We offer indoor Presentations, especially popular when heat or cold make outdoor Field Trips too uncertain or uncomfortable. Many Presentations are available via Zoom.
We also offer programs for schools, senior centers and similar organizations to educate and stimulate minds about the Ice Age Floods.



Other Events such as meetings, festivals, conventions and gatherings, with various public and private organizations, help us tell the story of the Ice Age Floods, Geology, Wildlife and History.
We often have our ‘Store in a Box‘ at these types of events where people can view and purchase IAFI merchandise.

“…there were a few double falls each member of which receded at approximately the same rate, so that the island in mid-channel became very much elongated, like a great blade, as the falls receded and the canyons lengthened.” J Harlen Bretz (1928) A tall, narrow basalt ridge, coined “The Great

In what may be the most dramatic mass extinction in Earth’s history, an asteroid impacted our planet 66 million years ago near what is now Chicxulub on the Yucatan Peninsula. The resulting hellscape extinguished 75 percent of then living species – including all non-avian dinosaurs. Over the last few years, scientists

1918 story in the Wenatchee World that Bill Dietrich (former Columbian reporter and later with The Seattle Times) says in his wonderful 1995 book Northwest Passage — The Great Columbia River , “is probably the single most famous newspaper article in Pacific Northwest history. . . It is generally credited

This 3:50 minute animation, presented by the Crown Point Country Historical Society, illustrates the growth of the Cordilleran Ice Sheet, the damming and back-up of Glacial Lake Missoula, and the progress of an Ice Age Flood through WA and OR after an ice dam collapse.

As a city kid in the ‘60s my family occasionally visited my grandparents in the farm country of Washington State’s Waterville plateau. My grandfather and two uncles were wheat farmers near the small town of Withrow, the future site of which had been partly hedged in by the Okanagan lobe

This feature-filled video by Tom Foster and Nick Zentner explores the evidence for Glacial Lake Missoula, and provides a treasure trove of places to visit and sights to see when you plan your field trip to the area.

An interesting, 4 minute captioned video from UC Santa Cruz (ingomar200) of a satellite-view computer simulation illustrating flood paths and transient lakes of an Ice Age Flood. The video shows a physics-based computer simulation of the Great Flood from Glacial Lake Missoula about 15,000 years ago. At the time, an ice dam

Castle Lake fills a plunge-pool at the base of a 300-ft tall cataract at the opposite (east) end of the Great Cataract Group from Dry Falls, above the east end of Deep Lake. A set of steel ladders put in place during the construction of the Columbia Basin Irrigation Project