Ice Age Floods National Geologic Trail
About
Embark on a fascinating journey through time and geology at the Ice Age Floods National Geologic Trail. This unique trail unravels the dramatic events that unfolded at the end of the last Ice Age, approximately 18,000 to 15,000 years ago. Picture this: a colossal ice dam formed in northern Idaho, giving rise to Glacial Lake Missoula, an immense body of water spanning over 3,000 square miles around the picturesque town of Missoula, Montana. Suddenly, the dam gave way, unleashing a cataclysmic deluge of floodwaters that surged across the terrain of Washington, coursing down the Columbia River, and ultimately spilling into Oregon before finally reaching the vast expanse of the Pacific Ocean. The repercussions of the Ice Age Floods were monumental, leaving an indelible mark on both the lives of the inhabitants and the physical landscape of the Pacific Northwest. As you traverse the trail, you'll witness firsthand the powerful forces of nature that sculpted the region into what it is today. Immerse yourself in the rich tapestry of geological wonders and untold stories waiting to be discovered along the Ice Age Floods National Geologic Trail. Experience the awe-inspiring legacy of these ancient cataclysms and gain a newfound appreciation for the transformative power of nature.
Directions
Unveiling the Path to Ice Age Floods National Geologic Trail Park
Your Journey Begins in Spokane
Embark on your adventure to the Ice Age Floods National Geologic Trail park from the vibrant city of Spokane. Begin by traveling west on I-90, a popular interstate highway that serves as the perfect starting point for your journey.
Next Stop: Davenport and Fairchild AFB
As you approach Exit 277, prepare to merge onto US-2. This route will guide you towards Davenport and Fairchild AFB, leading you one step closer to your destination while offering scenic views of Washington's landscape.
Entering Wilbur and WA-21
Upon reaching the charming town of Wilbur, make a right turn onto WA-21. This road will take you deeper into Washington's unique terrain. Remember to stay on the left as you transition onto Highway 174.
Grand Coulee Dam: A Sight to Behold
Continue your journey by turning right onto WA-155. This route will take you past the awe-inspiring Grand Coulee Dam and into the welcoming town of Coulee Dam. Here, you'll cross the majestic Columbia River, a sight that's sure to take your breath away.
Final Stretch: Crest Drive and the HQ Office
As you continue on WA-155, make a right turn onto Crest Drive. Follow this road up the hill and keep an eye out for the HQ Office on your left. Congratulations! You've reached the Ice Age Floods National Geologic Trail park, a testament to Washington's geological past and a treasure trove of natural beauty.
Contact Information
For further inquiries, feel free to reach out to our Program Manager located in Coulee Dam, WA 99116. We look forward to your visit and hope this journey will leave you with unforgettable memories of Washington's diverse landscape and historical significance.
Location
Located in Seattle
Weather Information
The National Geologic Trail is a collection of sites stretched across a four state area, the weather will vary from site to site. Please check the weather for your local region, or the region you'll be visiting, through their respective sites.
Gallery


Quick Facts
- Designation: National Geologic Trail
- City: Seattle
- Park Code: iafl
- Website: Official Website
Activities
Topics
Plan Your Visit
Ready to explore Ice Age Floods National Geologic Trail? Learn more about the park, plan your trip, and discover the natural wonders that await you.
Visit Official Website