 The majestic Bigelow Mountain Range looks down from Flagstaff Lake's southern shore, making the Dead River region a scenic favorite for outdoor enthusiasts.It is a popular river with whitewater boaters and rafters.The whitewater releases are controlled from Flagstaff Lake, which has been dammed and made into a reservoir, and range from 1200 to 7000 ft³/s (35–200 m³/s) and range in difficulty from easy class 2 to class 4+.