Old Trench-Road Trail
The Old Trench Road Trail is a relatively steep and rough singletrack that descends from Ridge 157 near Rock Springs. The recommended loop ride is 17 miles, starting at 6500 feet elevation at Tibble Fork and rising to 9400 feet. Total climbing will be about 3100 feet. The ride is  recommended only for advanced riders. The climb to Pole Line Pass is long. Ridge 157 has some steep sections. The Old Trench Road Trail becomes steep and rough, requiring strength plus excellent braking and bike-handling skills.
Loop ride via Pole Line Pass
0.0    Tibble Fork, straight onto gravel road
         as pavement turns left uphill
4.7    Keep R uphill at road fork
8.0    Pole Line Pass. Find ST on right.
         (If you go immediately uphill: wrong way!)
         N 40 31.901 W 111 34.243
8.6    Fork R
         N 40 31.404 W 111 34.249
10.3  Straight (L) at Forest Lake fork
         N40 30.347 W111 34.861
11.1  Hard R downhill onto Trail 181
         N40 30.029 W111 35.182
12.8  Fork L downhill
         N40 29.618 W111 36.705
13.2  Holman in from L (go R downhill)
         N40 29.344 W111 36.559
13.6  Fork L onto 172
         N40 29.150 W111 36.740
15.0  R downhill at Mill Canyon Trail
         N40 28.577 W111 36.699
16.0  Straight (R) downhill
         N40 28.655 W111 37.666
17.0  Arrive reservoir, cross creek
         N40 29.031 W111 38.378

Loop ride via Mud Springs and Tibble Fork
         (Caution!  Very difficult !)
0.0    Tibble Fork, straight onto gravel road,
         watch for trail dropping to river,
         cross river to Mill Canyon Trail
         N40 29.031 W111 38.378
1.0    Fork R ( Mud Springs)   N40 28.655 W111 37.666
1.7    L on Tibble Fork Trail    N40 28.158 W111 37.592
3.0    L on Ridge 157 northbound
         N40 27.547 W111 36.894
4.6    L on DT     N40 28.061 W111 35.681
5.1    ST just to R across dirt road
         N40 28.445 W111 35.277  Begin hard, ugly climb
6.6    East side trail in from R
         N40 29.472 W111 34.760   Then pass Rock Springs
6.8    Keep R       N40 29.472 W111 34.938
7.5    L downhill onto Trail 181
         N40 30.029 W111 35.182
9.2    Fork L downhill     N40 29.618 W111 36.705
9.6    Holman in from L (go R downhill)
         N40 29.344 W111 36.559
10.0  Fork L onto 172       N40 29.150 W111 36.740
11.4  R downhill at Mill Canyon Trail
         N40 28.577 W111 36.699
12.4  Straight (R) downhill   N40 28.655 W111 37.666
13.4  Arrive reservoir, cross creek   N40 29.031 W111 38.378

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. (Alternate: to riding through the river, bike over the dam and around the far side of the lake until you hit the Mill Canyon Trail 040 sign.)

Copyright 2002 Mad Scientist Software Inc
Trail conditions change. Use this trail guide at your own risk.