Four Corners Quad Keyah

The Four Corners Quad Keyah is a unique marathon and half marathon series held from December 4-7, 2025, at the Four Corners Monument Tribal Park near Teec Nos Pos, Arizona, on the Navajo Nation. Runners complete a marathon and half marathon each day, starting and finishing in a different state—Arizona, Utah, Colorado, and New Mexico—offering the rare chance to race in four states over four days. Courses feature trail and paved options with varied terrain, including scenic loops near the San Juan River and canyon singletrack.

The event includes on-course support, live entertainment, and awards, with proceeds benefiting Navajo youth and community wellness programs. Visit the organization's website for the most recent information.