From www.utahhistorytogo.org: "The Bear River is the largest tributary to the Great Salt Lake. Its volume at times reaches 1.4 million acre feet of water. Beginning in Utah's Uinta Mountains, the swift-falling stream first heads north and then changes into a slow meandering stream in Wyoming. It then flows west into Idaho and south into Utah. After flowing nearly 500 miles, it finally empties into Bear River Bay of the Great Salt Lake, ending ninety miles from its place of beginning."