Mud Spring - Mill Canyon Loop
The Mud Springs - Mill Canyon Loop, in the North Fork of American Fork Canyon, gives you a solid tough climb, fantastic views, and a rockin' tech downhill. But it demands good climbing skills, strong legs, great aerobic capacity, and advanced downhill skills. This 13-mile loop has over 3000 vertical feet of climbing, with a peak altitude of 8350 feet, and is for advanced riders only. Trail surface can be loose due to horse traffic. Season is mid-June through early October.
Clockwise Loop (recommended):
0.0   Pass bathrooms onto gravel road along river
N 40° 28.98' W 111° 38.68', alt=6050'
0.4   R to bridge across river
N40 29.127 W111 38.286
0.6   Keep left to begin climb in canyon
N40 28.985 W111 38.318
1.5   Keep straight (L) to Mill Canyon
N 40° 28.655' W 111° 37.695', alt=7020
2.4   Keep straight (Old Trench Rd Tr on L)
N40 28.578 W111 36.709
5.4   Ridgeline with views
5.8   Straight onto DT N40 28.439 W111 35.440
6.0   Fork R on DT ( GWT ) N40 28.433 W111 35.318

6.5   Fork R on ST (GWT, Ridge 157 )
N40 28.073 W111 35.674
7.4   Keep straight (faint descending trail on R)
8.1   Keep straight (R=Tibble, L=Deer Creek SF)
N40 27.544 W111 36.862
8.8   Hard R on Mud Springs Trail
N40 27.124 W111 37.378
9.6   Keep R in meadow (L= Overlook)
N40 27.505 W111 37.819
11.0 Cross Tibble Fork Trail N40 28.160 W111 37.593
11.7 L to descend Mill Canyon
Retrace path
13.2 Back at parking
Getting there: From I-15, take the Alpine-Highland exit just south of Point-of-the-Mountain. Go east towards the mountains on UT-92 and continue up American Fork Canyon. There's a $6 fee (as of 2009). About 6 miles up the canyon, turn left at the North Fork junction and drive 2 miles to Tibble Fork Reservoir. Go past the dam and park in the long parking area north of the lake N 40° 28.98' W 111° 38.68', altitude 6050 ft. On your bike, head up past the bathroom, and continue straight onto gravel road as the paved road turns left.

Copyright 2003 Mad Scientist Software Inc, updated 2010
Use this trail guide at your own risk.