Henrys Lake State Park

Quick Facts

Henrys Lake State Park


(208) 558-7532

Map Directions

Things To Do


Located just 15 miles west of Yellowstone National Park, this high mountain lake is the kind of place fishermen dream about. The state park, named after explorer Major Andrew Henry, opens the Thursday before Memorial Day and closes October 31st, weather permitting. The park offers campfire programs and a Junior Ranger program. Anglers fish for cutthroat, brook and rainbow-cutthroat hybrid trout. The park has a modern fish cleaning station near the boat ramp. Camping is at one of 44 sites and there are camping-cabins also available for rent. During winter, information on Henrys Lake can be obtained by calling Harriman State Park.

The Idaho Department of Parks and Recreation manages 30 state parks. They also run the registration program for snowmobiles, boats and off-highway vehicles. Money from registrations and other sources goes to develop and maintain trails, facilities and programs statewide for the people who use those vehicles. The agency manages a series of outdoor recreation grant programs that provide facilities and services to a wide variety of recreationists and the local governmental and nongovernmental organizations that serve them.

Map of Henrys Lake (ID)

Latitude, Longitude: 44.617824, -111.394844



  • Boating

    A boat ramp and launching docks are available in the park. Boaters should be cautious of the lake's unpredictable weather. Winds can make the surface choppy.

  • Bicycling

    There are many great trails in the area offering great bicycling and hiking opportunities.

  • Camping

    A campground with electricity and firewood. Showers, flush toilets, fish cleaning station, dump station, dump station.

  • Fishing

    Cutthroat trout, averaging three to five pounds; cutthroat-rainbow hybrids of up to 12 pounds; and brook trout up to three pounds abound in the waters of Henrys Lake. This provides a sport fishery that challenges the float-tuber and is equally exciting for a 10-year old dunking a worm over the side of the family boat. A modern fish-cleaning station is located near the boat ramp. Excellent stream fishing can also be found in the nearby Henrys Fork, Madison and Gallatin rivers.

  • Hiking

    There are many great trails in the area offering great bicycling and hiking opportunities.

  • Historic Sites

    The state park was named after explorer Major Andrew Henry.

  • Picnicking

    Great picnicking sites available.



From Ashton travel N. on Hwy 20 approximately 45 miles. From West Yellowstone travel S. on Hwy 20 approximately 15 miles. The park entrance is on the west side of Hwy 20.

Phone Numbers


(208) 558-7532

Campground reservations

(888) 922-6743