A Day In The Park: Ice Age Floods National Geologic Trail
The Ice Age Floods National Geologic Trail is not so much a trail as a route taken by cataclysmic floodwaters18,000–13,000 years ago, covering 16,000 square miles (41,440 square kilometers) in parts of Montana, Idaho, Washington State, and Oregon.
- By Rebecca Latson - January 22nd, 2026









