Pinnacle Mountain

Pinnacle Mountain, a 3,070-metre summit in Banff National Park’s Bow Range, stands beside Mount Temple and near Eiffel Peak, divided from Temple by Sentinel Pass. Walter Wilcox named it in 1894 for the rock pinnacles near the pass and later praised its horizontal limestone layers, shaped by rain, frost, and glacial action into striking spires and minarets. After three failed attempts, J. W. A. Hickson, Edward Feuz Jr., and Rudolph Aemmer made the first ascent in 1909, and the name became official in 1952. Formed from ancient sedimentary rock later thrust eastward during the Laramide orogeny, it is also known for the Grand Sentinel, a 120-metre quartzite spire.

Alberta · Canada