From Highway 97 at Tonasket, take the Loomis-Oroville Highway west through Loomis. Two miles past Loomis, turn left onto the Chopaka Mountain Road. Keep to the right and drive the steep grade up the mountain. After 3.5 miles, take the road to the right for 2 more miles to reach Chopaka Lake. The BLM camping area is north of the Washington State Department of Natural Resources campground.
Fly fishing lake. Catch and release. Great scenery. Can be windy and crowded at times. Fishing hard unless you are an expert.
Nice campground next to a pretty little lake. Road in is gravel, last 1/2 mile is a little rough but managable. Restrooms were incredibly clean. A dozen or more campsites spaced out throughout a meadow. Some have covered picnic tables, some are next to the lake; good variety. Lots of mosquitos, so bring protection in the early summer. Every one else in the campground appeared to be fishermen or bird watchers, so I assume the fishing and birding is good here.
Warning: The Google Maps Directions to this place are incorrect. At the Y just after entering the forest, stay left instead of going right. (Right leads through a range on a very rutted road with creeks you have to drive through and a very rotten wooden gate you must open and close behind you).
The campsite itself is awesome. Great fishing, nicely spaced campsites, and warm water to swim in. Also, the occasional sound of cows mooing from across the lake.