big-springs

Big Springs is a feature on Henrys Fork, Idaho.

Headwater springs (~120 million gal/day per Sexyloops). NO FISHING at Big Springs or above the Henrys Lake Outlet confluence (Henry's Fork Foundation).

It is on the stretch Upper Henry's Fork.

It is upstream of Big Springs Water Trail.

Sourced from 3 sites.

Sources: Henry's Fork Foundation, islandparkidaho.com and The Perfect Fly Store (retrieved 2026-10-20).

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