Provo Canyon Race Loop Trail
This trail is a fun singletrack in the gambel oak above the Provo Canyon water pipeline. It offers a few steep pitches, so it's rated upper-intermediate in technical requirement. The climb to the loop is strenuous, but the loop itself isn't too tough aerobically. Altitude is 5000 feet at the base, with a vertical climb of 600 feet. The loop itself is 2.2 miles long, while the connector to the bridge is 0.9 miles. (Up to the loop, once around, and back down is a 4.0 mile ride.) Most riders do a few loops.

Riding notes, loop from Canyon View Park:
0.0   DT uphill (west of upper parking)
N40 19.531 W111 38.702
0.3   Keep L and straight
N40 19.607 W111 38.826
0.4   R on ST (Bottom Access)
N40 19.602 W111 38.951
0.5   Straight onto Race Loop
N40 19.618 W111 39.033
0.55 Keep straight N40 19.641 W111 39.017
0.7   Fork L (R = East Access)
N40 19.677 W111 38.935

0.8 - 1.1   Keep straight x 4 cheaters
1.2   H intersection! Go L downhill
N40 19.764 W111 39.102
1.5   Back at H, go straight on upper trail
1.7   Keep straight L (R = Upper Access)
N40 19.809 W111 39.068
2.0   Keep L (R = Cliff Trail)
N40 19.660 W111 39.213
2.2   Back at Bottom Access
2.7   Parking

Getting there, Canyon View Park: Exit I-15 on Orem's 800 North and drive straight towards the mountains. Keep left to enter Provo Canyon. After 1 mile, you'll pass the entrance to Canyon View Park on your left. About 100 yards later, there's a diversion dam, then a bridge over the river. Drive over the bridge and park in the lot. Ride to the northwest corner of the parking area. Begin your ride by pedaling up the gravel road. Keep straight at the road fork at  mile 0.3 if you're heading for the Bottom Access trail (recommended), or fork R uphill for the Ravine or East Access trails.
Via Orem BST TH: Drive towards the mountains on 800 North. At 800 East, turn left and drive north about 1 mile. Immediately past the cemetery and just uphill from the fence, turn right (east) on Cascade Drive just before the Y in the road and drive 1/2 mile, go up 2 short switchbacks, and park in the paved parking area or the gravel overflow parking below it. Take the Bench Road (BST) east one mile and pick the Cliff Trail (starts as a doubletrack near the water structure), or go another half-mile to the easy Upper Access trail.
Trail conditions change, and the layout of a trail may change without notice. Use this trail guide at your own risk.