National Geologic Trail · Washington, Oregon +2 more
Ice Age Floods National Geologic Trail
At the end of the last Ice Age, 18,000 to 15,000 years ago, an ice dam in northern Idaho created Glacial Lake Missoula stretching 3,000 square miles around Missoula, Montana. The dam burst and released flood waters across Washington, down the Columbia River into Oregon before reaching the Pacific Ocean. The Ice Age Floods forever changed the lives and landscape of the Pacific Northwest.
Things to do
- Guided Tours
- Self-Guided Tours - Walking
- Self-Guided Tours - Auto
- Junior Ranger Program
Weather & when to go
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.
Operating hours
Ice Age Floods National Geologic Trail
The Ice Age Floods National Geologic Trail is a collection of sites operated and owned by a variety of partners. , Hours of operation and season will vary from site to site. Please check each respective site for more details and information.
FAQ
- Is Ice Age Floods National Geologic Trail free to visit?
- Ice Age Floods National Geologic Trail does not charge a standard entrance fee. Check the official NPS page for the latest details on any activity or permit fees before you go.
- What are the hours at Ice Age Floods National Geologic Trail?
- The Ice Age Floods National Geologic Trail is a collection of sites operated and owned by a variety of partners. , Hours of operation and season will vary from site to site. Please check each respective site for more details and information.
- Do I need a reservation for Ice Age Floods National Geologic Trail?
- No timed-entry reservation is currently required to enter Ice Age Floods National Geologic Trail. Campgrounds and permits may still need to be booked separately on Recreation.gov.