Harriman State Park

Inside an 11,700-acre wildlife refuge in the Greater Yellowstone area, with 22 miles of trails for hiking, biking and horses and eight miles of fly fishing water known to anglers as the Ranch. Moose, elk and trumpeter swans live here.

Type

State park

Town

Island Park · 15 mi from the town center

Run by

Idaho Department of Parks and Recreation

Official page

parksandrecreation.idaho.gov

Location

44.32260, -111.46040 · Open map

Source

Idaho Department of Parks and Recreation · checked October 2, 2026

Check the official page for hours, fees, access and closures before you go. Distances are straight-line miles. See something wrong? Let us know. Thank you.

• Harriman State Park
• Trail
• Lake
• Day use area
• Park
• Waterfall

Other parks, trails and things to do within 15 miles, nearest first.

• River Trail0.9 mi long · near Island Park
  0.7 mi
• Silver Lake Trail2.1 mi long · near Island Park
  1.0 mi
• Ranch Loop1 mi long · near Island Park
  1.2 mi
• East Gate Trail1.1 mi long · near Island Park
  1.6 mi
• Thurmon Creek Loop2.8 mi long · near Island Park
  1.9 mi
• Fish Pondlake · near Warm River
  2.1 mi
• Ridge Trail Shortcut0.6 mi long · near Island Park
  2.2 mi
• Island Park Reservoirrecreation site · near Island Park
  7.4 mi
• Centennial Mountain Shores Parknear Island Park
  7.7 mi
• Upper Mesa Fallswaterfall · near Warm River
  11 mi
• Lower Mesa Fallswaterfall · near Warm River
  12 mi
• Targhee National Forestnature reserve · near Island Park
  14 mi