The Wedge. On the north slope of the mountain, between the Winthrop and Emmons Glaciers. A large mass with Steamboat Prow at the upper or "sharpened" edge. Named by Prof. I. C. Russell and his party in 1896.
Theosophy Ridge. See Reese's Camp.
Tilicum Point. On the northwestern slope of the mountain, a part of Ptarmigan Ridge. The name is from the Chinook jargon, meaning "friend." Elevation, 6,654 feet above sea level.
Tirzah Peak. A portion of Chenuis Mountain near the northwestern boundary of the Park. Origin of name not ascertained. Elevation, 5,212 feet above sea level.
Tokaloo Rock. On the western slope, at the lower end of Puyallup Cleaver. Origin of name not ascertained. Elevation, 7,675 feet above sea level.
Tolmie Peak. In the northwestern corner of the Park. It is named in honor of Dr. William Fraser Tolmie, the Hudson's Bay Company surgeon, who was the first white man to approach the mountain. It was in 1833 that he climbed this peak. In 1883, Bailey Willis wrote: "The point remained unvisited for fifty years; last summer I was able to identify it and named it Tolmie Peak." A near-by stream is called Tolmie Creek. Elevation of the peak, 5,939 feet above sea level.
Trixie Falls. On the southeastern slope, in Cowlitz Park. The name was suggested by Superintendent Ethan Allen in honor of one of the daughters of former Superintendent E. S. Hall.
Tumtum Peak. In the southwestern corner of the Park, visible to all on the road to and from Longmire. The name is from the Chinook jargon, meaning "heart," and was suggested by the form of the mountain. Elevation, 4,678 feet above sea level.
Twin Falls. On the southeastern slope of the mountain, in the lower part of Cowlitz Park.
Tyee Peak. A part of Chenuis Mountain in the northwestern portion of the Park. The name is from the Chinook jargon, meaning "chief." Elevation, 6,030 feet above sea level.