Ypsilon Mountain

Ypsilon Mountain is a summit in the Rocky Mountains rising to 13,520 feet (4,120 meters), characterized by steep rock faces and multiple established routes through the high elevation terrain. The various approaches lead along ridges with exposed sections and require different climbing abilities depending on the path chosen.

The railroad companies of the early 1900s documented this peak as they surveyed the Rocky Mountain terrain in northern Colorado. Its location near Hague Peak places it within a significant geographical zone along the Continental Divide.

The mountain takes its name from its resemblance to the Greek letter Ypsilon, a detail that locals and visitors still reference when describing the peak. This shape-based naming reflects how climbers perceive and remember the landscape.

Visitors access the summit via the Fall River Road trailhead, where several established paths branch off toward the peak. Weather conditions change rapidly at this elevation, so it is wise to start early and prepare for variable terrain along the way.

The Four Aces of Blitzen Ridge presents four distinctive rock formations that challenge climbers with technical passages and vertical sections. This route is known among experienced alpinists for testing both strength and problem-solving skills on exposed terrain.

Location: Larimer County

GPS coordinates: 40.45737,-105.68121

Latest update: December 12, 2025 17:46