The descriptive name Old Desolate derives from its position standing desolate and alone at the western edge of Vernal Park.[6] The toponym was officially adopted in 1932 by the United States Board on Geographic Names, which noted that there were three peaks on the mountain, with elevations of 7,130-feet for the central peak, 7,003-ft for the south peak, and 7,004-ft for the north one, and the north and south peaks being a mile apart.[5]
Climate
Old Desolate is located in the marine west coast climate zone of western North America.[4] Most weather fronts originating in the Pacific Ocean travel northeast toward the Cascade Mountains. As fronts approach, they are forced upward by the peaks of the Cascade Range (orographic lift), causing them to drop their moisture in the form of rain or snow onto the Cascades. As a result, the west side of the Cascades experiences high precipitation, especially during the winter months in the form of snowfall.[4] Because of maritime influence, snow tends to be wet and heavy, resulting in high avalanche danger.[4] During winter months, weather is usually cloudy, but due to high pressure systems over the Pacific Ocean that intensify during summer months, there is often little or no cloud cover during the summer.[4] The months of July through September offer the most favorable weather for viewing or climbing this peak.