Mountain Lakes Wilderness

The Mountain Lakes Wilderness was officially established by the United States Congress in 1964. The protected area covers approximately 23,036 acres and is entirely located within the state of Oregon. The wilderness is administered and maintained by the U.S. Forest Service.

Maps, Contacts, and Regulations

Visitors can find maps, contact information, management guidelines, wilderness regulations, and resources from organizations dedicated to protecting wilderness areas. These materials help travelers prepare for safe and responsible exploration of the region.

Description

Long before it became the landscape known today, the Mountain Lakes Wilderness was part of a massive 12,000-foot mountain, one of the largest peaks in the southern Cascade Range. A powerful volcanic eruption later reshaped the mountain, creating a vast caldera—a wide crater-like depression formed by volcanic activity. Over time, glaciers carved through the caldera, transforming the area into a collection of smaller alpine lakes rather than one enormous lake like the nearby Crater Lake.

Today, only eight major peaks remain along the edge of the ancient volcanic basin. Because of its remarkable scenery and natural character, the area has been valued for many years. In 1930, Mountain Lakes was selected as one of the first three Primitive Areas established in the Washington-Oregon region. It is also unique within the National Wilderness Preservation System because it has a perfectly square boundary.

During the warmer months, especially from the time snow melts until mid-August, mosquitoes can be abundant throughout the wilderness. These insects become an important food source for rainbow trout and brook trout living in the area’s lakes.

Trails and Access

The 8.2-mile Mountain Lakes Loop Trail follows the southern edge of the caldera and provides access to several routes leading into the wilderness interior. The loop connects with three major trails: the 4-mile Clover Creek Trail from the south, the 6.5-mile Mountain Lakes Trail approaching from the west, and the 4.5-mile Varney Creek Trail from the north.

The eastern side of the wilderness borders privately owned land, limiting public access in that direction.

Leave No Trace

Following Leave No Trace principles is essential for protecting wilderness areas. The way these seven guidelines are practiced can vary depending on the environment, such as deserts, forests, or mountain regions. Visitors to the Mountain Lakes Wilderness should learn how these principles apply specifically to this unique landscape and help preserve its natural beauty for future generations.