Official Government Website

November 2021:

Due to problems with the drain field, the Dump Station at Henrys Lake State Park remains closed and will likely be closed for the 2022 season as well.

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.

Upcoming Development Projects:

  • New fishing station construction will occur throughout the duration of summer 2022. Please note, there will not be a fish cleaning station until this is complete.
  • Phase 2 of the Adams and Blue Duns Loops’ water system in fall 2022. This may displace a few reservations but visitors will be notified if this is the case.
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


  • 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


  • 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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