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From the Northern Arizona University campus, it’s just a short distance out the Sinclair Wash Trail to an intersection with the 800-mile-long Arizona Trail on the edge of Flagstaff. There’s also an urban trails system, the 42-mile Flagstaff Loop Trail – parts of which are still under construction – and the Kachina Peaks Wilderness north of the city. On the weekends try running Rim-to-River-to-Rim or Rim-to-Rim in the Grand Canyon National Park.