Let's Go Tours of North Idaho

Ancient Lake Missoula Floods Tour

The Ancient Lake Missoula Floods Tour is an all-auto tour that takes you to the Deluge Zone, where you can see the evidence of massive floods that occurred over 15,000 years ago. 

During the last Ice Age, a large lake formed in what is now western Montana. When the ice dam that held back the lake burst, a series of massive floods swept across eastern Washington and Oregon. 

These floods were so powerful that they carved out the Grand Coulee, the Columbia River Gorge, and many other features that we see in the landscape today.

Tour Details

  • The tour is only $185 per adult (children free)! Gratuity gratefully accepted.
  • The tour starts in Bayview, Idaho, and ends in Coeur d’Alene, Idaho.
  • The tour is approximately four hours long.
  • The tour is led by a knowledgeable guide who will share fascinating facts and stories about the floods.
  • The tour is all-auto, so you can relax and enjoy the scenery while your guide does the driving.
  • The tour is a great way to see the Deluge Zone and learn about the history of the floods.

On the Ancient Lake Missoula Floods Tour, you will see:

  • Erratics: These are large boulders that were carried by the floods from their original location in western Montana to eastern Washington and Oregon.
  • Giant current ripples: These are large, wave-like features that were created by the rushing water of the floods.
  • Huge deposits of fluvial sand: These are sand deposits that were left behind by the floods.
  • A glacial trough: This is a deep valley that was carved out by the floods.

The Ancient Lake Missoula Floods Tour is a great way to learn about the geology and history of the Pacific Northwest. It is also a fun and scenic tour that will take you to some of the most beautiful places in North Idaho.