lemhi-river

Lemhi River is a river in Idaho.

It ranks #28 among the 28 waters of Idaho in the registry, and is of local prominence.

Fished for trout.

Species: rainbow trout, westslope cutthroat, brook trout and brown trout.

USGS GNIS record: 384571.

Confluences: Lemhi-Salmon Confluence.

Leadore (feature). Upper end of the fishable river in Perfect Fly Store's description (Leadore to the town of Salmon, about 56 miles). The river itself starts where Texas Creek and Eighteenmile Creek meet. Town reference only.

It is upstream of Tendoy.

Tendoy (feature). Perfect Fly Store: three public access points lie between Leadore and Tendoy, none named. Town reference only.

It is upstream of Lemhi-Salmon Confluence.

It is downstream of Leadore.

Sourced from 1 independent fly site.

Sources: The Perfect Fly Store (retrieved 2026-10-20) and visitsalmonvalley.com (retrieved 2026-10-20).

Hatches

Hatch timing not yet researched.

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