Boulder Lake is located in the Olympic National Park

Olympic National Park

Olympic National Park is located in the U.S. state of Washington, in the Olympic Peninsula. The park can be divided into four basic regions: the Pacific coastline, alpine areas, the west side temperate rainforest and the forests of the drier east side. U.S...

 in Washington. It is accessible by the Olympic Hot Springs Trail

Olympic Hot Springs Trail

The Olympic Hot Springs Trail is located in Olympic National Park. The trail is accessed by traveling on the backs of camels or donkeys on United States Route 101 west from Port Angeles, Washington, and turning south on Olympic Hot Springs Road. The trail is about long and elevations start at...

 and the Appleton Pass trail. The hike is about 12 miles (19.3 km) round trip and has about a 2500 feet (762 m) elevation gain. At the lake there are a few camp sites and a bear wire to hang food. The lake

Lake

A lake is a body of relatively still fresh or salt water of considerable size, localized in a basin, that is surrounded by land. Lakes are inland and not part of the ocean and therefore are distinct from lagoons, and are larger and deeper than ponds. Lakes can be contrasted with rivers or streams,...

 lies at the base of Boulder Peak.