Official Government Website
PARK UPDATE:

Dump Station Remains Closed

Due to problems with the drain field, the Dump Station at Henrys Lake State Park remains for the 2025 season.
Alternate Dump Stations are:
  • Bing Lemke Forest Service Dump Station, Last Chance, 20 miles south of the Henrys
  • Ashton Visitor Center, 43 miles south
  • Grizzly RV is available in West Yellowstone, 15 miles east.

The only sewage dump at the park will be the FULL hook-up sites.

We are sorry for the inconvenience.

Park Reservations
By phone: 1-888-9-CAMPID or 1-888-922-6743

Location: 15 miles W of Yellowstone National Park | 138 miles N of Pocatello, ID | 300 miles N of Salt Lake City, Utah| 369 miles E of Boise, ID

Amenities:

  • Amphitheater
  • Boat Ramp/Launch
  • Dump station
  • Fire Rings
  • Firewood Sales
  • Fish Cleaning Station
  • Indoor Restrooms
  • Indoor Showers
  • Life Jacket Loaner Station
  • Picnic Areas
  • Swimming - Lake/River
  • Vault Toilets
  • Water - Drinking

Accommodations:

  • Cabins
  • RV Campsites
  • Tent Campsites

Boating: Ramp, launching dock

Trail Types: Hard path (ADA); hike, bike

ADA Accessibility features:

  • ADA Boat Ramp
  • ADA Cabin
  • ADA Campsite
  • ADA Restroom
  • ADA Trail

Acreage: 585

Elevation: 6,470

Coordinates: 44.6164, -111.3677

Overnight: 83 serviced sites, 3 cabins (one ADA), 3 designated ADA campsite

Nearby: ATV and Nordic trails, Yellowstone National Park, Harriman State Park, golf, Mesa Falls Scenic Route, Fort Henry Historic Byway, horseback riding on Nez Perce Trail

Wifi Info: WiFi hotspot is available near the Adam's Loop Bath House and near the Caddis Loop Bath House

Learn: Junior Ranger program, campfire programs, guided hikes

Visitor Center: No

Museum Available: No

Current Conditions

Contact the Park

Address: 3917 E. 5100 N.
Island Park, ID 83429
Phone: (208) 558-7532 Summer | (208) 558-7368 Winter
Hours of Operation: Day-use locations within state parks are open from 7 am to 10 pm, per Idaho state code 26.01.20 (5). Day-use hours may change based on park manager discretion.

Email the Park

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