grande-ronde-river

Grande Ronde River is a river in Washington.

It ranks #10 among the 19 waters of Washington in the registry, and is of national prominence.

Fished for steelhead and trout.

Species: steelhead and rainbow trout.

USGS GNIS record: 1505215.

It shares a watercourse with Grande Ronde River, Oregon.

Boggan's Oasis (access). It is fishable and launchable. Downstream end of the road-accessible reach; steelheaders' hub since the 1940s (Drake). Below it the river is mostly raft-accessible.

Sourced from 1 independent fly site.

Sources: drakemag.com, The Perfect Fly Store (retrieved 2026-10-20) and The Fly Fishing Place.

Hatches

Skwala (stonefly)

Stage: adult. Single or templated source.

  1. Jan
  2. Feb
  3. Mar hatching
  4. Apr
  5. May
  6. Jun
  7. Jul
  8. Aug
  9. Sep
  10. Oct
  11. Nov
  12. Dec

Single dated report, 3/18/22: skwalas emerging with other insects while rainbows and steelhead were being caught. Other reports (July-September, January-May) mention good hatches without naming insects. Trout season on the page runs June 1 to April 30.

Sources: The Perfect Fly Store

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