Yes, boondocking is legal in Washington State, primarily on public lands managed by the U.S. Forest Service (USFS) and the Bureau of Land Management (BLM). Boondocking, also known as dispersed camping, is when campers stay outside of developed campgrounds and typically do not have access to amenities like restrooms, water, or electricity. Washington State offers several areas for boondocking, including national forests such as Olympic National Forest, Mt. Baker-Snoqualmie National Forest, and Gifford Pinchot National Forest. Always follow the specific rules and regulations for the area you are camping in and practice Leave No Trace principles to minimize your impact on the environment.