In Island Park is Big Springs (Idaho), a first-magnitude spring that is the source of the South Fork of Henrys Fork.
North Fork | Clark Fork (river) | Fork-tailed Swift | Blacks Fork | South Fork Fishing and Hunting Club | Red Fork, Oklahoma | Red Fork | North Fork Clearwater River | Clark Fork | American Fork, Utah | A Fork in the Road | Spanish Fork River | North Fork Humboldt River | North Fork Flathead River | Henrys Fork (Snake River) | Henrys Fork | Fork Union Military Academy | Fork Township, Marshall County, Minnesota | Fork Township | fork (software development) | Fork | fork | Dry Fork, Bland County, Virginia | Deep Fork River | Tug Fork | South Fork High School | South Fork Dam | South Fork | Salt Fork Red River | Roaring Fork Valley |