This is a tougher version of the middle portion of Ridge 157, intended for expert riders. (For an easier ride using this same portion of Ridge 157, see the Mill Canyon Springs Loop page.) The ride starts on the Cascade Springs Road, climbing South Fork to Ridge 157, then descending via a new singletrack back to the South Fork Trail.
For a longer ride, you can climb up the southern limb of the South Fork trail to the Alpine Loop Summit, then ride Ridge 157 north. This adds about 300 additional feet of climbing, and extends the ride by about 3 miles.
You'll see great views of Timpanogos, Mill Canyon, Tibble Fork Canyon, and the granite peaks of the Snowbird Ridge surrounding Mineral Basin.0.7 miles uphill, you'll climb a short but very steep spot then descend a bit and suddenly turn left. Just a few feet after the turn, look to your right. That trail is the return route from the top of Mill Canyon. Go straight past it for now.
When the trail breaks out onto doubletrack, turn hard right and go into the turn-around area. On the far (left) side of the turnaround, looking out over short scrub, you'll find the downhill singletrack.
Reaching the trail, turn left (uphill and around the bend). Head back to the parking area the way you came.
0.0 Cross the paved road, find the trail
N 40° 26.828 W 111° 36.491
0.7 Keep L at fork after sharp turn
N 40° 27.233 W 111° 36.390
1.6 Right at 4-way at ridgetop
N 40° 27.547 W 111° 36.894
N 40° 28.057 W 111° 35.675
From turnaround, L on ST downhill
4.2 Meadow, trail may be faint
Aim for "hump" of forested hill
4.8 Back at South Fork, turn L
N 40° 27.233 W 111° 36.390
5.5 Back at Cascade Springs Road
Getting there: (Cascade Springs Road trailhead) 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 right at the North Fork junction. Drive up to the summit of the Alpine Loop, then turn left on the Cascade Springs Road. About 1.5 miles later, turn right on a gravel road and park. GPS N 40° 26.801' W 111° 36.489'. Cross the paved road and find the singletrack that crosses the stream and climbs the meadow.
Single-page riding guide GPS track files and route (right-click and "Save as..."): GPX
High-res topo map (200 KB): view
Lodging, camping, shops: Links to north Utah County resources