Merrill Lake was formed when lava flows from Mt. St. Helens blocked the stream valley. In the early 1930's the lake was planted with Eastern Brook Trout, Rainbow Trout and Yelowstone Cutthroat. Brown Trout were introduced in 1987 and have proved to be very successful.
This fly-fishing, catch-and-release-only lake is located north of Cougar near Mount St. Helens. It is open to fishing year-round, but action is usually slow and often inaccessible during the winter months due to snow. Merrill contains Coastal Cutthroat, Brown Trout to several pounds and some Rainbow Trout and Eastern Brook Trout.
This lake is stocked annually with rainbow, browns, and brooks.
This feature shows the general location of the selected body of water. Directions may not include routes to boat launches or other water access sites. Check below for access sites or read the description for specific access information. Please do not trespass on private property.