Achtung Baby
Achtung Baby is a 1.5-mile downhill flow trail on the southern side of Traverse Mountain in Draper. The trail has features that can be considered expert, with multiple jumps including doubles. But intermediates will enjoy this trail -- they simply need to slow down enough to keep the tires on the dirt. There's 450 vertical feet of elevation loss, for a average grade of under 6%. The trail's intermediate rating is not due to steepness or technical difficulty. It's because countless jumps have been engineered into the trail.
Ride notes, loop from Angel Gate parking
0.0   North (either trail) N40 27.889 W111 48.302
Drop to creek
0.05 Immediate L on ST after creek
(Hog Hollow Creek trail) N40 27.915 W111 48.281
0.1   L on Hog Hollow trail N40 27.949 W111 48.307		0.4   Pass Achtung exit (on L) N40 28.173 W111 48.435
1.4   Hard L onto Two Hollows N40 28.900 W111 48.917
1.5   L on ST, Achtung Baby N40 28.880 W111 48.860
3.0   Hog Hollow, L for lap, R to finish N40 28.173 W111 48.435
3.4   Back at parking

Westfield Road (lower Hog Hollow trail): If you're parking (or pedaling) on Westfield Road, the trail is 0.7 miles west of the stop sign where Westfield ends on 200 North in Alpine. Spot the metal gate on the north side of the road near the school crossing. The doubletrack that heads uphill through the gate is the lower Hog Hollow trail.
Beacon Hill Park (bottom of Hog Hollow Creek): From Westfield Road, turn north uphill on Beacon Hill Blvd. Drive 0.5 miles, and just after the road turns to the east, turn right into the parking area above Beacon Hill Park. The Hog Hollow Creek trail will be on the north side of the road (across the street from, and just east of the parking lot).
Angel Gate at Spring Hollow (upper Hog Hollow and top of Hog Hollow Creek): On Westfield Road, turn uphill (north) on Beacon Hill Blvd. Drive 0.5 miles, then as Beacon Hill turns to the right (east), turn left on Lighthouse Drive to continue straight north uphill. Lighthouse will become Angel Gate. Keep straight until you pass the irrigation facility, then park. At the northeast corner of the fence, a doubletrack descends east across the hollow. Immediately after crossing the creek, turn left on Hog Hollow.
From Peak View Trailhead in Draper: Take the Peak View trail on the south side of the trailhead area. Ride uphill 0.7 miles, then take the right (downhill) fork to the Porcupine Trail, which will descend to old Hog Hollow.