Williamson River

LOWER WILLIAMSON RIVER: Redband trout, brown trout and yellow perch

Flows have dropped and the river is very fishable.

The yellow sally stonefly hatch is going strong at the ODFW boat ramp and downstream. These small yellow stoneflies are most active from 7-9 pm. Lots of other insects are hatching as well including golden stoneflies, Epeorus mayflies, PMD mayflies, white miller caddisflies, and a few salmonflies still around.

Most of the catch is 8 to 14 inch Redband Trout but bigger Redband Trout are moving in from the lake. These bigger trout will take large leech, streamer and wooly bigger patterns as well as lures mimicking minnows.

Last updated 6/5/25.

UPPER WILLIAMSON RIVER: Redband trout and brook trout

.Flows are perfect for fishing with some color.

Dry fly fishing is excellent for brook trout near the Deep Creek confluence. Black drake mayflies along with small blue winged olives and pale morning duns were hatching. . Black Drake mayflies should be prolific throughout. Best fishing for Redband Trout is below the old Rocky Ford crossing.

Sand Creek and Yamsi Ranches offer exceptional pay to fish operations. Last updated 6/5/25.

Check Upper Williamson River Flows.

LOWER WILLIAMSON RIVER: Redband trout, brown trout and yellow perch

Lower Williamson River is currently closed to fishing to protect spawning Redband Trout and suckers. Will open to fishing May 22. Flows will be high on opening day. Fly fishing with sucker egg patterns should be fair below the confluence of the Sprague River. Numerous small mayflies are hatching, and small pheasant tails match the hatch well. A few golden stoneflies and various caddisflies are also hatching Last updated 5/12/25.