The Koocanusa Area is primarily centered along a narrow 90 mile long Koocanusa Reservoir, formed by Libby Dam. Approximately 60 miles are within the United States. Libby Dam is operated by the US Army Corps of Engineers which provides daily dam tours. Koocanusa Reservoir is the major recreation attraction in this geographic area, providing ideal settings for large watercraft and sailing. The reservoir contains a large and stable population of Kookanee salmon, Kamloops (rainbow) trout, bull trout, West slope cutthroat trout and burbot. Fishing has been reported to be fantastic. There are a number of large developed recreation complexes along the reservoir shoreline including: Rexford Bench, McGillivray, Peck Gulch, and Rocky Gorge. Campgrounds, picnic areas, swimming beaches, boat ramps, as well as day use areas comprise many of the facilities within these developed sites. In addition there are two marina complexes located on the reservoir, one on the southern end, at Cripple Horse, while the northern portion of the reservoir has Mariners Haven Resort near the Town of Rexford.
Source: rec_gov · last verified 2026-05-14