Rainbow Lake

2025 Trout Derby

All prizes at this lake have been claimed.

Prizes already claimed here:

Pautzke Packs
Rod and reel combo ($100) + assortment of fishing supplies
$35 PACK OF LURES FROM DICK NITE SPOONS
$35 PACK OF LURES FROM DICK NITE SPOONS
$35 ELECTRONIC GIFT CARD @ GIBBS FISHING
$35 ELECTRONIC GIFT CARD @ GIBBS FISHING
$35 ELECTRONIC GIFT CARD @ GIBBS FISHING
ANNUAL SUBSCRIPTION FOR NORTHWEST SPORTSMAN MAGAZINE
ANNUAL SUBSCRIPTION FOR NORTHWEST SPORTSMAN MAGAZINE
ANNUAL SUBSCRIPTION FOR NORTHWEST SPORTSMAN MAGAZINE

Find another lake with prizes still available!

Rainbow Lake will be closed to the public June 11 and 12, 2025 for a contractor to treat the lake to prevent future cyanobacteria, commonly known as blue-green algae, blooms. A product called Phoslock will be used that binds with phosphorus in the water column, making it settle on the bottom of the lake and become benign. While Phoslock does not have known harmful effects to fish, wildlife, humans, or pets, the lake will be closed so that applicators can move freely around the lake to do their work. This work is permitted by the Department of Ecology.

Along the Tucannon Road south of Marengo, this small bank fishing only lake off the Tucannon River is located within the Department of Fish and Wildlife, Wooten Wildlife Area. This lake is well stocked with 10-12 inch Rainbow Trout, plus some jumbo (14 inch plus) rainbows.

Rainbow Lake offers ADA accessible recreation, see Washington State Parks website.

This lake is also located close to campgrounds on the Wooten Wildlife Area, U.S. Forest Service campgrounds and nearby KOA Campground at the Last Resort. Camp Wooten State Park, National Forest lands, and the Wenaha-Tucannon Wilderness are nearby.

Two-pole fishing is allowed

Shoreline access: Good - excellent shoreline access with a few spits that extend out into the lake

Species you might catch

Rainbow trout

Lake information

County: Columbia
Acreage: 7.80 ac.
Elevation: 2213 ft.
Center: 46.313936, -117.660611
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Fishing resources

Catchable fish plants

10 most recent fish plants in this lake
Stock Date	Species	Number Released	Number of Fish Per Pound	Facility

Visit the Catchable Trout Plants page for a more detailed search of trout plants in this or other bodies of water. To view or download the source data for this table visit the WDFW Fish Plants dataset on the Washington State Open Data Portal

Fishing prospects calendar

Rainbow trout

Fishing success for Rainbow Trout is generally best in the spring when thousands of fish are stocked statewide, but they can be caught year-round in most waters with a little patience and persistence. Success remains high into June and gradually declines as water temperatures increase and fish move offshore to stay cool. Fish that escaped the spring harvest return to the nearshore areas in the fall as waters cool off. Some waters may also be stocked again in the fall further boosting catch rates.