The Four Corners Quad Keyah Marathon Series offers a unique endurance experience at the Four Corners Monument on the Navajo Nation. Taking place in four states—Arizona, Utah, Colorado, and New Mexico—participants will complete marathon and half marathon races each day while enjoying diverse terrains and scenic routes. Highlights include community fun runs, live entertainment, snack boxes, and extensive support like food and medical aid. Finishers receive distinct medals and special awards. The event supports youth adventure and community wellness programs benefited through race proceeds. The series is co-sponsored by various local organizations, reflecting a strong community spirit.