Silver Lake Flat (and Old Sheep Trail)
Silver Lake Flat Reservoir is an absolutely beautiful alpine lake surrounded by granite and limestone peaks. Families can fish, picnic, paddle their boats, and ride around the lake. Hard-core riders can use the climb to the lake as a training ride, or grab one of the singletrack options. The Lake is at 7300 feet elevation. It's usually clear of snow and ready to play by early June.
Here are a few options for enjoying Silver Lake:
Kiddie-ride: Drive up to Silver Lake. Ride the bikes around the lake, 1.25 miles, little elevation change.
Classic beginner (or training) ride: Park at Tibble Fork. Ride from Tibble Fork up Granite Flat/Silver Lake road (0.8 miles pavement, remainder is dirt road), around Silver Lake and back, 8 miles round trip, 1050 feet of climbing.
Singletrack addict: Park at Tibble Fork. Climb up on Horse Access singletrack, loop Silver Lake on dirt road, return by Old Sheep Trail singletrack and North Fork road. 8.5 miles (5 on ST), 1050 feet climbing.
Combo: Up via road, down via Old Sheep Trail. 8.8 miles, 1050 feet climbing.
*The Horse Access trail starts right at Tibble Fork, just to the right of the paved road as it turns upward from the reservoir. At the fork about 1.4 miles up, you'll want to keep right. Left takes you to the Wilderness Area.
Riding notes for Combo ride
( up road to Silver Lake &
back via Old Sheep Trail):

0.0   Head uphill from Tibble Fork Parking.
N 40° 28.995 W 111° 38.648
0.05 Follow pavement left uphill.
0.8   Leave pavement, R uphill on gravel road
N 40° 29.382 W 111° 39.171
1.9   Horse Access Trail crosses road
N 40° 29.623 W 111° 39.073
2.4   Pass Old Sheep Trail as road turns L
N 39° 29.572 W 111° 38.740
3.3   Arrive at lake, keep L
N 40° 29.999 W 111° 39.448
3.9   Cross creek, R at fork to circle lake
N 40° 30.407 W 111° 39.399
4.5   After crossing dam, turn L on road
5.5   At corner of switchback, go L on ST
Old Sheep Trail
N 39° 29.572 W 111° 38.740
7.3   At river, find way across
R downhill on gravel road
N 40° 29.978 W° 111 38.169
8.8   Back at Tibble Fork 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. Park at the far end of the paved parking area. To start the classic Silver Lake ride, head uphill and left on the paved road. To ride the Horse Access Trail, go to where the paved road turns left uphill, but go a few feet onto the gravel (North Fork) road. Find the singletrack that runs left uphill a few feet away from the paved road.

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