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Idaho > Idaho State Parks and Recreation Areas > Henrys Lake State Park
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Henrys Lake State Park

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General Information

Description - *Note: All information presented is non-seasonal, as per the wishes of the State of Idaho.

Located just 15 miles west of Yellowstone National Park, this high-mountain lake is surrounded by 8-10,000 foot mountains and Targhee National Forest which provide spectacular scenery. The fishing in Henry's Lake and surrounding streams is a trout anglers dream and is a world renowned fishery. The park, named after explorer Major Andrew Henry, opens the Thursday before Memorial Day and closes October 31, or as weather conditions warrant. After September 15 it is wise to call ahead to see which services are available.

Attractions - The park offers 45 campsites of which 26 sites have water and electricity and the remaining sites have central water. Twenty seven (27) sites are reservable from spring opening through Labor Day. All sites have a picnic table and campfire grill. There is a central utility building with restrooms and showers. Camper cabins are also available for rent. For camping reservations click the button on the right or call 208-558-7532. During the winter months call Harriman State Park at 208-558-7368

Recreation - 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.

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

The park offers a 3.06-mile self-guided interpretive hiking trail.

Climate - The climate in Idaho varies with the elevation. The bottom of Hell's Canyon, Boise and other locations at low elevations receive hot summer weather. Temperatures at these elevations often reach 90 degrees or more during the summer months. At the same time the mountains will get mild temperatures with cool nights. Winters are just as extreme with the mountains experiencing extreme conditions and temperatures. An average of 500 inches of snow falls on the Idaho highlands. Temperatures are known to dip below zero degrees F on many winter nights. The lower elevations enjoy a more mild winter season with less precipitation than the mountains. The sun is a constant throughout the year. Be sure to wear sunscreen and layered clothing in Idaho's unpredictable weather.

Location - Fifteen miles west of the west gate of Yellowstone National Park, off US 20/191

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More Information

Contact Information:
Henrys Lake State Park, 3917 E. 5100 N , Island Park, Idaho, 83429, Phone: 208-558-7532
, hen@idpr.state.id.us

Additional Information:
Eastern idaho -
Idaho State Parks and Recreation Areas -

Idaho Department of Parks and Recreation - Official Homepage of the Idaho Department of Parks and Recreation


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