Mud Spring DH, via the GWT
The Mud Spring Trail is a fairly steep, moderately technical trail that branches off Ridge Trail 157 in American Fork Canyon. It crosses the Tibble Fork Trail on its way to the Mill Canyon Trail, which then drops down to Tibble Fork Reservoir. Most riders do Mud Spring as a downhill, as described on this page.The vertical change is 2200 feet. As a shuttled ride, it's 7 miles with total climbing of 3000.
Riding notes, Timpooneke to Mill Canyon at Tibble Fork:
0.0    Begin riding past bathroom toward mountain
0.1    Turn L over bridge
0.8    L at fork in camping area
0.9    Cross paved road
1.3    Keep straight (R = Salamander Flat)
N 40° 26.422 W 111° 37.702
1.5    4-way trail intersection, L over bridge
N 40° 26.474 W 111° 37.627
2.0    Pine Hollow in from left, continue straight
N 40° 26.757 W 111° 37.644
2.6    Hard L fork onto Ridge 157
N 40° 26.680 W 111° 37.022
3.4    Mud Spring, fork L (straight)
N 40° 27.127' W 111° 37.375', alt=7980
4.1    Keep R (L goes to view)
N 40° 27.624' W 111° 37.519', alt=7990
5.2   Straight, cross Tibble Fork trail and climb
N 40° 28.158' W 111° 37.592', alt=7350
5.9  Fork L downhill on Mill Canyon trail
N 40° 28.655' W 111° 37.695', alt=7020
6.9   Cross river, or go left around to dam
N 40° 29.066' W 111° 38.390'
7.0   Onto North Fork Road
Other options: You can start at the summit parking area for a somewhat shorter ride. This skips a bit of the climbing. You can also make the ride a loop by riding down the North Fork road (U-144), the up the South Fork road (U-92).

Getting there: From I-15, take the Alpine-Highland exit and drive 7 miles to the mouth of American Fork Canyon. Pay your $6 fee (as of 2009) there. Five miles later at the fork in the road, go along the south fork of the river. About 4 miles up, there's a T in the road. Turn right into the Timpooneke Campground road. The parking area is on your left about 1/4 mile later.

Copyright 2006 Mad Scientist Software Inc. Trail conditions change. Use this trail guide at your own risk.