A tourist destination? A plan not frozen in time

During the last Ice Age, an ice sheet blocked the Clark Fork River creating Glacial Lake Missoula. Periodically, the ice dam would fail, resulting in a large flood of ice and dirt-filled water rushing across northern Idaho and eastern and central Washington, through the Columbia River Gorge. The waters back up into the Willamette Valley as far as Salem and Eugene. Have a look at Tualatin’s Ice Age Heritage Tourism plan and you will see the future already starting to unfold as many actions outline in this 2010 plan have already been realized.