Idaho / Island Park Reservoir /

Island Park Boat Ramp

Boat ramp · on Island Park Reservoir · near Island Park · Idaho

Algal bloom health advisory

Idaho Department of Health and Welfare has a cyanobacteria health advisory for this water (updated October 2, 2026). Avoid contact with discoloured water or scum, and keep pets and children out of it.

Idaho Department of Health and Welfare · checked October 18, 2026

Past algal blooms

Harmful algal blooms reported on this water (state reports compiled by U.S. EPA): 2016, 2021, 2023 and 2026.

state reports compiled by U.S. EPA · checked October 18, 2026

Open per USDA Forest Service recreation sites (boating)'s data, checked October 18, 2026. Seasonal gates, low water and storms are not always posted; check before you tow.

At the launch

Type
Boat ramp
Fee
Free
Restrooms
Vault toilet(s)
Hours
Day use only; no overnight camping allowed
Managed by
USDA Forest Service
Website
fs.usda.gov
Coordinates
44.42590, -111.38938

Directions (Google) Apple Maps

Conditions

Lake level: Island Park Reservoir

Today's level loads here; without it, see the agency's page below.

Level from Bureau of Reclamation, Reclamation Information Sharing Environment (RISE) (Island Park Reservoir and Dam), daily; the agency's page. Levels change; check conditions at the ramp before you launch.

Water level

Latest reading loads here; without it, see the USGS page below.

USGS gauge ISLAND PARK DAM NR ISLAND PARK ID, 0.6 mi from this launch on Island Park Reservoir: water level, a reading every 15 minutes. Readings and history at USGS.

On Island Park Reservoir

Reservoir in Idaho. All launches on Island Park Reservoir.

Community

Where people who use Island Park Reservoir talk about it.

Nearby launches

Sources

Why it is listed as public: listed by USDA Forest Service recreation sites (boating). Something wrong, or is this launch private? Send a correction; it goes to a person.