Fishing lakes in Fremont County

Fishing lakes in Fremont County, Idaho include 2 lakes. Rainbow Trout is stocked most often. The most recent plant was May 29, 2026 at Horseshoe Lake.

2 locations shown. Click a pin for details.

Lakes in Fremont County

Horseshoe Lake
36.1 acres, 6,506 ft elevation
Rainbow TroutArctic GraylingCutbow 128 plants
Last stocked May 29, 2026 Open lake page →
U.S. Bureau of Reclamation
Island Park Reservoir
7,281.3 acres, 6,306 ft elevation
Kokanee SalmonRainbow TroutCoho SalmonCutbowCutthroat TroutSplakeSteelhead 650 plants
Last stocked May 20, 2026 Open lake page →

Other counties in Idaho