This is the first of the Ant Knolls. Ridge 157 climbs up the ridgeline at the edge of the trees, while Trail 31 traverses around. Your choice. Photos August 22, 2006.
Ant Knolls
Dry Fork Loop, Big Flat Loop
Dry Fork Loop, Big Flat Loop
The Ant Knolls trail starts at Pole Line Pass at the top of the North Fork of American Fork Canyon. This is a very scenic trail, with views of Mineral Basin, the Snowbird ridge, and the Heber Valley. The ride can be done as an out-and-back, as an intermediate-level loop by circling east into Big Flat, or as a challenging advanced-technical loop by dropping into Dry Fork.
The singletrack section is only 2.5 miles long. It's an intermediate-technical ride, but the
trail is narrow, so good bike-handling skills are required. Aerobically
the trail is moderately
tough because it starts at 9000 feet and climbs 500 from there.
Most riders will prefer to fork left on Trail 31, rather than try to climb to the top of the knolls on Ridge 157. Motorcycles churn the steep ridgeline climb on 157 into a long push-a-bike. Yes, the views from the top are great. But if your goal is to RIDE, go left at each of the two forks.
Most riders will prefer to fork left on Trail 31, rather than try to climb to the top of the knolls on Ridge 157. Motorcycles churn the steep ridgeline climb on 157 into a long push-a-bike. Yes, the views from the top are great. But if your goal is to RIDE, go left at each of the two forks.
Section of Trail 31 early in the ride. The track is about 12 inches wide here. It's often narrower.
View east over the Heber Valley.
The out-and-back is a great ride all by itself, for a total of 5 miles. For more riding, the
out-and-back can be combined with a climb up the gravel road from Dutchman
Flat or from Tibble
Fork.
You can also do the out-and-back as a side-trip while doing the Forest Lake Loop . This makes a surprisingly nice ride, but the descent to Forest Lake and down Shaffer Fork requires advanced-level skills.
Intermediate Loop Ride
Big Flat: 2.5 miles after leaving Pole Line Pass, the trail forks on top of the ridge. Going right, the trail slopes down to a narrow dirt road. Just keep right at all forks, and including 2 miles later when you reach Snake Creek road, a larger dirt-gravel road. You'll drop 1000 feet down Big Flat before climbing 600 vertical back to the pass. This loop is 8 miles. If you reach the loop by starting at Dutchman Flat, it's a 16-mile ride with 2500 vertical.
Big Flat: 2.5 miles after leaving Pole Line Pass, the trail forks on top of the ridge. Going right, the trail slopes down to a narrow dirt road. Just keep right at all forks, and including 2 miles later when you reach Snake Creek road, a larger dirt-gravel road. You'll drop 1000 feet down Big Flat before climbing 600 vertical back to the pass. This loop is 8 miles. If you reach the loop by starting at Dutchman Flat, it's a 16-mile ride with 2500 vertical.
View west down American Fork Canyon.
View up Mineral Basin. In the middle, you can barely make out the towers of Snowbird's ski lifts on the skyline.
Advanced Tech Loop Ride
Dry Fork: Fair warning -- Dry Fork is a vicious and abusive little downhill. I'd suggest this route only for confident, strong, skilled riders with good suspension. At the fork at the end of the ridgeline, go left to a slope that looks ridiculously steep. The trail drops 600 vertical over 1/2 mile of loose, rutted switchbacks. Reaching the Dry Fork doubletrack, you'll bounce over huge loose boulders. The best strategy is to whoop-de-do the sidewall, pick a spot to cross, hit the opposite rim, then turn and bounce across again. This loop is 7.8 miles. If you start from Dutchman Flat, the ride is 10 miles.
Dry Fork: Fair warning -- Dry Fork is a vicious and abusive little downhill. I'd suggest this route only for confident, strong, skilled riders with good suspension. At the fork at the end of the ridgeline, go left to a slope that looks ridiculously steep. The trail drops 600 vertical over 1/2 mile of loose, rutted switchbacks. Reaching the Dry Fork doubletrack, you'll bounce over huge loose boulders. The best strategy is to whoop-de-do the sidewall, pick a spot to cross, hit the opposite rim, then turn and bounce across again. This loop is 7.8 miles. If you start from Dutchman Flat, the ride is 10 miles.
Ant Knolls-Big Flat Loop, From Dutchman
Flat
0.0 Begin riding uphill on gravel road
N 40° 31.626 W 111° 36.205
0.7 Fork R uphill
4.0 Pole Line Pass. Find ST on left.
N 40° 31.901 W 111° 34.243
4.2 Fork L on Trail 31 (157 = short but steep)
N 40° 32.040 W 111° 34.257
4.7 Ridge 157 rejoins
N 40° 32.245 W 111° 34.307
5.1 Fork L on 31 (R = 157 = climb Ant Knoll)
N 40° 32.542 W 111° 34.265
(continued...)
0.0 Begin riding uphill on gravel road
N 40° 31.626 W 111° 36.205
0.7 Fork R uphill
4.0 Pole Line Pass. Find ST on left.
N 40° 31.901 W 111° 34.243
4.2 Fork L on Trail 31 (157 = short but steep)
N 40° 32.040 W 111° 34.257
4.7 Ridge 157 rejoins
N 40° 32.245 W 111° 34.307
5.1 Fork L on 31 (R = 157 = climb Ant Knoll)
N 40° 32.542 W 111° 34.265
(continued...)
Handlebar view on Trail 31 as we skirt the second Ant Knoll.
View near the end of the trail. The fork for Dry Fork vs Big Flat is just before the last grove of trees.
(continued Big Flat Loop...)
6.1 Ridge 157 rejoins
N 40° 33.302 W 111° 34.564
6.5 Fork R, end Ant Knolls trail
N 40° 33.671 W 111° 34.778 Alt=9500
Keep R at all road forks
8.0 R on Snake Creek Road
N 40° 33.585 W 111° 33.346 Alt=8350
10.5 Keep R at fork
N 40° 32.388 W 111° 33.189
12.0 Pole Line Pass, continue downhill
16.0 Back at parking
6.1 Ridge 157 rejoins
N 40° 33.302 W 111° 34.564
6.5 Fork R, end Ant Knolls trail
N 40° 33.671 W 111° 34.778 Alt=9500
Keep R at all road forks
8.0 R on Snake Creek Road
N 40° 33.585 W 111° 33.346 Alt=8350
10.5 Keep R at fork
N 40° 32.388 W 111° 33.189
12.0 Pole Line Pass, continue downhill
16.0 Back at parking
Forest Lake Figure 8 (see Forest
Lake Page)
12.0 Ride Big Flat Loop as above to mile 12
Don't descend from Pole Line Pass.
Fork L on ST on west side of clearing
(If you go immediately uphill: wrong way!)
12.6 Fork R
N 40° 31.404 W 111° 34.249
14.3 Fork R downhill to Forest Lake
N 40° 30.347 W 111° 34.861
14.8 Pass Lake, keep R on DT
16.7 Cross river, go R uphill on road
N 40° 31.364 W 111° 36.506
17.1 Back at parking
12.0 Ride Big Flat Loop as above to mile 12
Don't descend from Pole Line Pass.
Fork L on ST on west side of clearing
(If you go immediately uphill: wrong way!)
12.6 Fork R
N 40° 31.404 W 111° 34.249
14.3 Fork R downhill to Forest Lake
N 40° 30.347 W 111° 34.861
14.8 Pass Lake, keep R on DT
16.7 Cross river, go R uphill on road
N 40° 31.364 W 111° 36.506
17.1 Back at parking
View of typical section of the doubletrack in Big Flat.
Ant Knolls-Dry Fork Loop, From Dutchman
Flat
0.0 Begin riding uphill on gravel road
N 40° 31.626 W 111° 36.205
0.7 Fork R uphill
4.0 Pole Line Pass. Find ST on left.
N 40° 31.901 W 111° 34.243
4.2 Fork L on Trail 31 (157 = short but steep)
N 40° 32.040 W 111° 34.257
4.7 Ridge 157 rejoins
N 40° 32.245 W 111° 34.307
5.1 Fork L on 31 (R = 157 = climb Ant Knoll)
N 40° 32.542 W 111° 34.265
0.0 Begin riding uphill on gravel road
N 40° 31.626 W 111° 36.205
0.7 Fork R uphill
4.0 Pole Line Pass. Find ST on left.
N 40° 31.901 W 111° 34.243
4.2 Fork L on Trail 31 (157 = short but steep)
N 40° 32.040 W 111° 34.257
4.7 Ridge 157 rejoins
N 40° 32.245 W 111° 34.307
5.1 Fork L on 31 (R = 157 = climb Ant Knoll)
N 40° 32.542 W 111° 34.265
6.1 Ridge 157 rejoins 31
N 40° 33.302 W 111° 34.564
6.5 Fork L, end Ant Knolls trail
Steep descent into Mineral Basin
N 40° 33.671 W 111° 34.778 Alt=9500
7.0 L on doubletrack
N 40° 33.764 W 111° 35.094
8.9 L on gravel road
N 40° 32.399 W 111° 35.546
9.3 Right on North Fork Road
10.0 Back at parking.
N 40° 33.302 W 111° 34.564
6.5 Fork L, end Ant Knolls trail
Steep descent into Mineral Basin
N 40° 33.671 W 111° 34.778 Alt=9500
7.0 L on doubletrack
N 40° 33.764 W 111° 35.094
8.9 L on gravel road
N 40° 32.399 W 111° 35.546
9.3 Right on North Fork Road
10.0 Back at parking.
And this is the path down Dry Fork! Get yer butt back, be light on the handlebars, but ride aggressively! The typical boulder in the photo is 10-12 inches in diameter...
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. Go straight past the outhouse onto the gravel road that goes up along the river. To ride the trail from the summit, drive 8 miles up the rough road to Pole Line Pass, keeping right at the fork at mile 5.3. For the ride options described above, go from Tibble Fork only to Dutchman Flat at mile 4. Find the parking area with a wooden fence on your left. Start the ride heading uphill.
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. Go straight past the outhouse onto the gravel road that goes up along the river. To ride the trail from the summit, drive 8 miles up the rough road to Pole Line Pass, keeping right at the fork at mile 5.3. For the ride options described above, go from Tibble Fork only to Dutchman Flat at mile 4. Find the parking area with a wooden fence on your left. Start the ride heading uphill.
Riding resources for this trail:
Single-page riding guide
GPS track files (right-click and "Save as..."):
Out and Back: GPX
Big Flat Loop: GPX
Dry Fork Loop: GPX
Low-res route maps (similar to map at right):
Dry Fork Loop
Big Flat Loop
High-resolution topo map for printing (800 KB): View
Lodging, camping, shops: Links to AF Canyon resources
Single-page riding guide
GPS track files (right-click and "Save as..."):
Out and Back: GPX
Big Flat Loop: GPX
Dry Fork Loop: GPX
Low-res route maps (similar to map at right):
Dry Fork Loop
Big Flat Loop
High-resolution topo map for printing (800 KB): View
Lodging, camping, shops: Links to AF Canyon resources
Topo map of Forest Lake area.
