Mount St. John is the highest point on the divide between Cascade Canyon and Paintbrush Canyon in the Teton Range. The mountain is visible as a serrated ridge on the north side of Cascade Canyon opposite the high central peaks of the range. The summit of the mountain is the highest of many granite towers that are nearly the same height along the ridgecrest.
Orestes St. John
Mount St. John is named after Orestes St. John, who was one of the major geologists with the Hayden Survey that ended in 1883. more history...
Orestes St. John has had charge of the work of the Teton division, which seems to have been very thoroughly done, being illustrated by thirty-nine maps and sections of the region traversed by his party. The American Naturalist, Vol. 14, No. 5. (May, 1880), p. 360.
Mr. Orestes St. John's very comprehensive and systematic report on the Wind River district could be done justice to only in a seperate note of some length. The Closing Report of Hayden's Survey Science, Vol. 3, No. 51. (Jan. 25, 1884), pp. 103-107.
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Detail of a St. John sketch of the western slope of the Teton Range as viewed from the top of Freds Mountain, from the Eleventh Annual Report of the Hayden Survey, 1879. Notice that the Grand Teton is referred to as "Mount Hayden".
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Detail of a St. John sketch of the Teton Range as viewed from the headwaters of the Gros Ventre River, from the Twelfth Annual Report of the Hayden Survey, 1883.
Mount St. John is a mountain in a very central location to public access, yet the higher portions of the mountain are rarely visited in comparison to the canyons and lakes that surround it. The major reason for its solitude is the due to the fact that the main trail into Hanging Canyon on its south side is both unmarked and is not maintained. While Paintbrush Canyon, Cascade Canyon, and Jenny Lake are heavily used areas, Mount St. John stands accessible but silent. Many attractive granite towers surround Lake of the Crags, including Symmetry Spire, Rock of Ages, and the Jaw.
To access Hanging Canyon and Lake of the Crags, take any of the unmarked trails that head to the west from the Jenny Lake Trail between Cascade Canyon and String Lake.
Mount St. John is administered by Grand Teton National Park. A $20 7-day entrance fee is required to enter the National Park. No backcountry camping areas are located on the mountain. It is advisable to register at the Jenny Lake Ranger Station before you climb. However, they will not check if you
When To Climb
Most climbing is done in July through September. Early season climbers will encounter steep snow.
Winter snow conditions can be extremely dangerous.
There are no backcountry camping areas directly on the mountain.