harriman-state-park

Harriman State Park is a stretch on Henrys Fork, Idaho.

Also called The Ranch, Railroad Ranch, Harriman Ranch, Harriman Ranch / Railroad Ranch and Henry's Fork - Harriman Ranch.

It is fishable and wade only.

Universally called the Railroad Ranch or just the Ranch (Sexyloops: 'Many locals call it the Railroad Ranch or just the Ranch but it's now the Harriman State Park'; Henry's Fork Anglers' podcast: the three names are interchangeable). Length is quoted 6 mi (TRR), 7 mi (Perfect Fly Store), 8.5 mi (Sun Valley Magazine), '13-mile Ranch run' (TU 100 Best) -- do not rely on any one figure. State-park, w

It is upstream of Canyon Country.

It is downstream of Last Chance.

Sourced from 10 sites.

Sources: askaboutflyfishing.com, bigskyanglers.com, bigskyanglers.com (2), Henry's Fork Foundation, henrysforkanglers.com, howtoflyfish.orvis.com, kenlockwood.tu.org, mail.sexyloops.com, The Perfect Fly Store (retrieved 2026-10-20), trroutfitters.com and worldcastanglers.com.

Access, closures and rules change; check with the state agency before you go.