Glacial Lake Columbia Glacial Lake Columbia Glacial Lake Columbia was the lake formed on the ice-dammed Columbia River behind the Okanogan lobe of the Cordilleran Ice Sheet when the lobe covered of the Waterville Plateau west of Grand Coulee in central Washington state during the Wisconsin glaciation. Lake Columbia was a substantially larger version of the modern-day lake behind the Grand Coulee Dam. Lake Columbia's overflow – the diverted Columbia River – drained first through Foster Coulee, and as the ice dam grew, through first Moses Coulee, and finally, the Grand Coulee. The Cordilleran ice sheet also blocked the Clark Fork River and
Grand River (Michigan) conducted studies and explains resulted as it moves downstream. The expedition offered presentations, displays and demonstrations to communities along the river in an attempt to interact with the river, its tributaries, and its people throughout the watershed. One of its stops was in Portland, at the riverside Verlen Kruger Memorial pavilion. Kruger traveled over by paddle, was the 1990 and 2000 GRE Rivermaster, and counted the Grand as his favorite river. A 500-passenger dinner cruise ship modeled after a riverboat operates on the river in Lansing. Grand Rapids was built on the site of a mile long rapids on the