🠈 Lake Missoula 🠊
NOTE: This page was design for display on the mobile version of Missoula Websites
The distinctive rings on the hillsides surrounding Missoula were created by Ancient Lake Missoula. This lake was held back by ice dams that would periodically break and unleash monumental floods in the lands to the West.
Much of Western Washington show the scarring from the floods and the Columbia River Valley features a number of canyons carved by the events.
The last great flood occurred 12,000 years ago at the end of the ice age.