The Oregon Health Authority has issued a precaution for harmful algae blooms in the Upper Klamath National Wildlife Refuge and Agency Lake. Follow this link to see the Oregon Health Authorities website showing harmful algae bloom advisories. Last updated 9/2/26.

The Petric Park Boat Ramp is open with docks installed. There is abundant vegetation in the canal making progress challenging. The Henzel Park Boat Ramp docks are in.

Angling is slow at the mouth of the Wood River as Redband Trout are moving back to the main lake and moving into the rivers to stage for spawning. The Caenis mayfly, black caddis, and midge hatches are the best I have ever observed on Agency Lake. Only a few yellow perch are currently at the mouth of Sevenmile Creek. The lake is approximately 3.5 feet below full pool.

Redband Trout numbers are down due to record setting drought in 2020 through 2022, resulting in poor survival of juvenile redband trout and subsequent recruitment into the adult population.

Closed to angling for salmon. Open year-round for Redband Trout. Agency Lake regulations are catch-and-release for redband/rainbow trout with no bait allowed (artificial flies and lures only). The boundary of Agency Lake is the south end of the Straits. This change is due to record low spawning escapement for trophy redband trout throughout the Klamath Basin in 2020 and even worse in 2026. ODFW also encourages the use of single barbless hooks in this fishery, not removing the fish from the water, and using catch-and-release rubber nets. Brown Trout are rare in the catch but there is no size or bag limit.

Please report any redband trout captured with radio tags. These radio tags will look like fishing line coming from the lower abdomen area. These juvenile redband trout were tagged in spring of 2021.