Grand Coulee at the higher side of the flexure. Encountering the steep slope of the monocline, the new river would have cascaded off the rim, down onto a broad plain where Coulee City and Dry Falls State Park now stand. Upper Grand Coulee began as an cascade just north of Coulee City. As the rush of water eroded the surface, it steepened into a waterfall. The falls continued to erode backward (northward) creating the canyon. When the falls reached the divide into Lake Columbia, i.e., preglacial Columbia Valley, it disappeared, leaving the elongated notch. Today, the waters of the Lake Roosevelt are
Grand River Collegiate Institute Grand River Collegiate Institute Grand River Collegiate Institute is a public secondary school in Kitchener, Ontario. The school is located at 175 Indian Road. It is part of the Waterloo Region District School Board. Grand River's principal is currently Jim Woolley. Grand River's sports teams are known as the Renegades (commonly shortened to the "Rens"). As the fifth collegiate in Kitchener-Waterloo, Grand River Collegiate (GRCI) was built on Indian Road near the Grand River on Kitchener's east end. "Grand River" was chosen in favour of other names like Parkwood, Sand Hills, as the name for the new school. GRCI officially