Koocanusa Area

Facility · Idaho ·

Managed by the USDA Forest Service

Kootenai National Forest (NF) · Open Access

2,531 ft
Elevation

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. There are also a number of private RV parks, restaurants, and stores near the marinas or within the surrounding communities of West Kootenai, Rexford, Eureka and Libby. Two paved highways running adjacent to the reservoir and extending from Eureka to Libby have been designated by the State of Montana as a Scenic Byway. Traffic is light and views along the roadways are memorable, including glimpses of the Ural-Tweed Big Horn Sheep herd, located on the eastern side of the reservoir along Hwy 37,

Various mountain ranges create the geographic setting; Purcell Mountains located west of Koocanusa Reservoir while the Salish Mountains are located on the eastern side. The Koocanusa Area is the perfect setting for year round recreational attractions, including: fishing, water sports, rock and ice climbing, and driving for pleasure, especially during the fall Western Larch color change.

Stone Hill climbing area is also located adjacent to Hwy 37 just south of Koocanusa Bridge. The climbing area offers in excess of 70 established climbing routes. Many climbers use the site as an opportunity to hone their climbing skills or to introduce new climbers to the sport. Koocanusa Bridge located at Mile Post 53, approximately 6 miles south of the Town of Rexford. It is the longest and highest bridge in Montana. The bridge connects Hwy 37 to the Western side of the reservoir and recreational opportunities such as road access to the Yaak River valley, the community of West Kootenai, and numerous hiking trails and fishing creeks. Located on the western side is a former fire lookout cabin that is now available for the public to rent.

The Koocanusa Area is the perfect setting for a large-water based recreation vacation.

Fish Your National Forests: This site can be accessed by Passenger Car; Fish available include: Trout, Native Trout; Types of fishing available include: Wade, Shore, Motorized boat, Float tube, Spin, Bait; ADA Accessible fishing access with boat launch

Getting there

48.82339, -115.26305 · 48°49'24.2"N 115°15'47.0"W

Directions (Google Maps) · Directions (Apple Maps)

Typical weather

Typically 87°F in Jul, down to 31°F in Dec.

JanFebMarAprMayJunJulAugSepOctNovDec
High °F323949607077878675574131
Low °F192128344249535144352721
Precip in0.90.70.91.01.82.51.11.11.31.21.21.2

1991–2020 averages from the nearest NOAA station, 10.4 mi away — not measured at the facility itself, and elevation can make a real difference over that distance.

Map

Member photos

Common questions about Koocanusa Area

Can you reserve a site at Koocanusa Area?
No. Koocanusa Area is not reservable through Recreation.gov, so sites are first-come, first-served or booked elsewhere.

Camping near Koocanusa Area

Comments

Contact

Recreation.gov last updated this record on 2026-02-25.

Facility information and photographs from Recreation.gov (RIDB). SpotOpened is not affiliated with Recreation.gov or any federal agency.