| Harriman State Park | |
| Iucn Category: | V |
| Map: | USA Idaho#USA |
| Relief: | 1 |
| Location: | Fremont County, Idaho, United States |
| Nearest City: | Island Park, Idaho |
| Coordinates: | 44.3361°N -111.4614°W |
| Area Acre: | 11000 |
| Elevation: | 6120feet |
| Designation: | Idaho state park |
| Established: | 1977; opened 1982 |
| Website: | Harriman State Park |
Harriman State Park is a public recreation area situated on the 11000acres Harriman Wildlife Refuge in Fremont County, located 3miles south of Island Park in eastern Idaho, United States. The state park is located within the Henry's Fork Caldera, which is part of the Greater Yellowstone Ecosystem. It serves as a habitat for various wildlife, including elk, moose, sandhill cranes, trumpeter swans, and the occasional black or grizzly bear. Two-thirds of the trumpeter swans that winter in the contiguous United States spend the season in Harriman State Park.
The park's acreage was owned by Union Pacific Railroad investors from 1902 to 1977, serving as a cattle ranch and private retreat for the Harriman and Guggenheim families. It was deeded to Idaho for free in 1977 by Roland and W. Averell Harriman, whose insistence that the state have a professional park managing service helped prompt the creation of the Idaho Department of Parks and Recreation in 1965. The park opened to the public in 1982.
Friends of Harriman State Park, Inc., a 501(c)(3) organization, was established in 2010 with the aim of supporting community projects that directly benefit Harriman State Park in Idaho. The formation of this organization came in response to an announcement by the State of Idaho regarding the potential complete reduction of park funding and the potential dissolution of the Idaho Department of Parks and Recreation into another state agency. However, these measures were not implemented.
Henry's Fork, a fly-fishing stream of note, winds through park meadows for eight miles. The park offers trails for hiking, biking, and horseback riding. In winter, roads and trails are groomed for cross-country skiing.