Waldo Lake Wilderness is a wilderness area surrounding Waldo Lake in the central Oregon Cascades. It is located within the Willamette National Forest. It was established in 1984 and consists of . Geography Ninety-eight percent of the Waldo Lake Wilderness is covered by forest on moderate to steep terrain, which ranges in elevation from . Waldo Lake itself is outside the wilderness boundary, but it is considered one of the purest lakes in the world: vertical visibility can exceed . It was scooped out by ancient glaciers, and is Oregon's second largest lake at with a maximum depth of . Within the wilderness are the Six Lakes Basin, Eddeeleo Lakes, Wahanna Lakes, and Quinn Lakes. There are approximately of trails which lead to many of these lakes. Waldo Lake Trail, much of which is not in the wilderness boundary, provides a loop around Waldo Lake. Vegetation in the Waldo Lake Wilderness consists mostly of Douglas-fir, mountain hemlock, and Pacific silver fir. Recreational activities Primary activities in the Waldo Lake Wilderness are hiking, camping, fishing, and boating. Gasoline-powered motor boats on the lake have been banned since 2012 after nearly twelve years of public comment, deliberations, and decision making. See also List of Oregon Wildernesses List of U.S. Wilderness Areas Wilderness Act References External links GORP - Waldo Lake Wilderness, Oregon Willamette National Forest - North Waldo Trail Area Willamette National Forest - South Waldo Trail Area Protected areas of Lane County, Oregon Wilderness areas of Oregon Willamette National Forest 1984 establishments in Oregon Protected areas established in 1984