Chisholm Trail
The Chisholm Trail is found along Highway 313 around 10 miles from US 191. It's 7.2 miles long, with two trailheads near its south (uphill) end. The top elevation on the trail is around 5950 feet. It's a nice out-and-back, but also a great part of longer loop rides. The loop below is recommended for nicely conditioned intermediates or better.
Trail conditions, connections, and alignment will change. Use this guide at your own risk. UtahMountainBiking 2016.
Loop ride from Horsethief Highway 313 (Chisholm) TH:
0.0   Left from parking, cross road
N38 34.859 W109 47.868
0.3   Cross dirt road
0.8   Keep straight (L = to Rowdy)
N38 35.045 W109 48.436
0.9   Trailhead, straight across road
N38 35.127 W109 48.437
1.5   Keep R (L = to campground entry)
N38 35.089 W109 48.859
6.1   Cross dirt road N38 37.019 W109 49.222
6.8   R on Big Lonely
N38 37.257 W109 48.795
7.5   Straight on Coney Island
N38 36.931 W109 48.370		10.3 R (L = Middle Earth)
N38 37.831 W109 47.006
10.6 R on DT (straight = Rocky Tops)
N38 37.803 W109 46.832
11.4 R on Seven Up
N38 37.197 W109 47.046
13.2 R on Whirlwind
N38 36.020 W109 47.229
13.4 R on North Whirlwind
N38 35.916 W109 47.307
14.5 R on Mustang
N38 35.501 W109 47.388
15.3 R on Chisholm
N38 35.088 W109 47.595
15.8 Back at trailhead
Getting there:
From I-70 and Crescent Junction, drive south on US-191 for 20 miles (about 9 miles north of the Colorado River if you're driving out from Moab) to Highway 313. Drive uphill.
Highway 313 Horsethief Area (Chisholm) Trailhead: At mile 12.5, spot the trailhead kiosk on the left side of the road. About 150 feet uphill, turn left into the parking area. Eastbound (away from the road) takes you to the Horsethief trail system. West across the road takes you toward the Horsethief Campground trails and on toward Navajo Rocks.
Horsethief Campground Road: Turn left toward Horsethief Campground at mile 11.8 from 191. After 0.1 mile on the gravel road (before reaching the campground), turn left into the fenced parking area.
Big Mesa Trailhead: On Highway 313 at mile 6.4 after leaving Highway 191, just as you reach the top of a hill, look for a gravel turn on your right immediately after you pass through the cut in the hill. The Middle Earth trail starts across the road from parking.
Gemini Bridges Road (Getaway) Trailhead: At mile 12.9, turn left at the Gemini Bridges sign. About 200 feet from the pavement, spot a small parking area on your left with the Getaway trail just east of parking. A short distance down Getaway, you can take the Mustang Loop clockwise to reach the east end of Chisholm.