Upper Summit Lake (British Columbia) River, Great Slave Lake and the Mackenzie River into the Beaufort Sea portion of the Arctic Ocean. Upper Summit Lake (British Columbia) Upper Summit Lake is a lake in Regional District of Fraser-Fort George, in the Central Interior of British Columbia, Canada, about north of the city of Prince George and south of the community of Bear Lake. It lies just west of Highway 97 (John Hart Highway). Upper Summit Lake is about long and wide, and lies at an elevation of . There are no inflows, and an unnamed creek flows from the southern tip of the lake to
Bear River (Great Salt Lake) passing through Evanston then weaving along the Utah-Wyoming state line as it flows north. It turns northwest into Bear Lake County, Idaho and flows through the Bear Lake Valley in Idaho, past Montpelier where it receives the short Bear Lake Outlet Canal that drains Bear Lake, which straddles the Idaho-Utah border. At Soda Springs, near the north end of the Wasatch Range, the Bear River turns abruptly south, flowing past Preston in the broad Cache Valley that extends north from Logan, Utah. It re-enters northern Utah, meandering south past Cornish and Newton. It is impounded to form the Cutler Reservoir,