Prepare for an unforgettable challenge at the Mount Disappointment Mountain Race on September 26, 2026, offering both 50K and 25K distances. Held in the rugged Angeles National Forest, this highly regarded event starts and finishes atop Mt. Wilson, California, at an elevation of approximately 5,700 feet. Runners can expect a notoriously tough course featuring significant elevation changes, including a long downhill start, followed by steep climbs and sustained descents on single-track trails and fire roads. The course is particularly known for its brutal final climb, which can be underestimated, especially when combined with typical race day conditions of highs around 88°F and lows around 61°F.

The Mount Disappointment Mountain Race, with a history dating back to 2005 under original Race Director Gary Hilliard, is renowned for its challenging terrain and a rewarding sense of accomplishment. Aid stations are strategically placed along the route, offering crucial support, though some may be water-only. Runners consistently highlight the demanding nature of the ascents, particularly the strenuous climb back to the Mt. Wilson Observatory finish line.

This race is a true test of endurance and mental fortitude, set amidst the scenic beauty of the California mountains. While the name might suggest otherwise, the experience of conquering these formidable trails is anything but disappointing, attracting trail runners seeking a genuine mountain ultra experience.