Lake Allen. On the west slope of Mount Wow in the southwestern corner of the Park. To avoid confusion, it was originally named Lake O. D. Allen. The name was given in honor of the veteran botanist, who was at one time a professor at Yale University.
Lake Eleanor. Near the northern boundary of the Park. Origin of name not ascertained.
Lake Ethel. In the north-central portion of the Park, with outlet into the West Fork of White River. The name was suggested by The Mountaineers in 1912 as a compliment to the daughter of Park Ranger Thomas E. O'Farrell.
Lake George. On the western slope of Mount Wow in the southwestern corner of the Park. Origin of name not ascertained.
Lake James. In the north-central portion of the Park, with outlet into Van Horn Creek. The name was suggested by The Mountaineers in 1912 as a compliment to the young son of Thomas E. O'Farrell, Park Ranger.
Lake Tom. A small lake near Arthur Peak in the northwestern corner of the Park.
Landslide. On the northwest of Slide Mountain, in the northeastern corner of the Park.
Lee Creek. A tributary of Crater Creek in the northwestern portion of the Park. Origin of name not ascertained.
Liberty Cap. The northern peak of the summit of Mount Rainier. It has been claimed that Stevens and Van Trump gave this name at the time of their first ascent in 1870, but Mr. Van Trump says they called it Tahoma Peak. One of the early uses of the present name was by Bailey Willis, who wrote in 1883: "Over the trees near the outlet, just to the right of this pinnacle, a pure white peak towers up into the heavens; it is the northern summit of Mount Tacoma,—the Liberty Cap." Elevation, 14,112 feet above sea level.
Liberty Ridge. To the west of Willis Wall and overlooking the head of Carbon Glacier near the northern summit. The name was adopted in 1914 by the engineers of the United States Geological Survey who made the official map of the Park. It was suggested by John H. Williams, author of the book entitled "The Mountain That Was God."