As you can see in the map, the 4-Milers will do a single loop around the Old Tucson grounds, then head out to the desert for a 2-mile section, then do one more 1-mile lap of the Old Tucson Main Street area.
The route starts in front of the Bitter Creek film set, then heads south to the Rodeo Grounds. You'll turn back north and head on the smooth dirt of historic Main Street all the way up the Old North Church and Boot Hill. You'll follow the chunky wide trail across the train tracks, through the desert, until turning south again. After passing the High Chaparral set, you'll cross the finish line in front of Bitter Creek at the 1-mile mark.
The next portion of the course repeats this first lap -- then you head out into the Old Tucson Studios desert area, with a wide trail, the well-known Horse Poop Hill (see photo below), then a single track cutting through the cactus forest.
The last 1.5 miles of the route include the wide-open dirt pathways near the outer parking lots, then a trip past the Rodeo Grounds, Main Street, Boot Hill, and back past the High Chaparral set to the finish line.
Difficulty: This uneven terrain trail route has a combination of smooth dirt surface, rutted single track, cactus-lined single track, and chunky desert. It is not suitable for those who have difficulty with balance. It is not suitable for chair athletes. We ask that those pushing strollers be mindful of the terrain and nearby runners.