Wasatch Crest to Midmountain Loop from Deer Valley
This is a epic ride of 35 miles. You'll do about 3400 vertical feet of climbing. It's for very conditioned riders only. You'll start at 8100 feet elevation, climb to over 10,000 feet, and descend to around 7800 at the ride's lowest point. The ride starts from Silver Lake Lodge (the upper lodge) at Deer Valley.
Riding notes, clockwise loop from Silver Lake Lodge:
0.0   R downhill on DT, aim for underpass
N40 37.284 W111 29.326
0.1   L on singletrack ( Midmountain Trail )
N40 37.267 W111 29.330
0.7   Keep L uphill (R = lower Tour des Suds)
N40 37.146 W111 29.754
1.0   Keep L uphill N40 37.177 W111 29.842
1.4   L uphill on Team Big Bear N40 37.111 W111 30.155
2.4   Keep straight (don't go onto road)
N40 36.894 W111 30.031
2.8   Keep R ( Flagstaff Loop ) N40 36.768 W111 29.880
3.1   L on DT Ruby Lift Road N40 36.537 W111 29.969
3.3   Keep L (R = to Ruby Lift)
3.7   Cross Guardsman Rd, through parking to DT
N40 36.390 W111 30.432
3.9   Stay on DT (R = upper TG) N40 36.402 W111 30.654
4.6   Veer R off DT onto ST N40 36.565 W111 31.248
4.8   L uphill on DT N40 36.580 W111 31.505
4.9   Turn R corner, then L level westbound DT
N40 36.561 W111 31.512
5.2   Join gravel Guardsman Rd westbound
6.1   DT joins on R, keep straight
6.5   Guardsman Pass Parking
R uphill on DT (leave Guardsman at parking area)
Start Scott's Bypass N40 36.410 W111 33.294
6.9   L off DT onto ST N40 36.715 W111 33.392
7.9   Scott's Pass, uphill to L on DT
Wasatch Crest
8.2   Top of Puke Hill
12.2   Desolation Lake, The Spine
12.3   Keep R uphill (L = Mill D No)
N40 39.560 W111 35.845
14.8   R to Crest Connector N40 41.204 W111 36.072
(L = Mill Creek)
15.1   Straight
16.0  Join Midmountain , keep straight (R)
N40 41.488 W111 35.134
18.6 Red Pine Lodge, keep straight through
N40 40.658 W111 34.675
21.8 Keep L  (R = Ironman) N40 39.625 W111 33.364
23.6 Hard L (R to Ironman) N40 40.060 W111 32.490
25.1 Keep L (R = Ironman) N40 39.299 W111 32.306
25.6 R uphill (L = Armstrong) N40 39.099 W111 32.288
27.5 L down (R = Powerline) N40 37.963 W111 32.180
Then rapid R on Midmountain
28.3 Stay L (R= Crescent MG) N40 38.182 W111 31.514
28.4 Cross road
30.2 L downhill N40 37.875 W111 30.915
30.3 R onto ST N40 37.906 W111 30.839
30.4 R uphill N40 37.860 W111 30.896
30.6 Cross gravel road N40 37.788 W111 30.799
31.1 Stay R uphill (L = Empire Link)
N40 37.658 W111 30.894
31.7 Level straight N40 37.492 W111 30.993
(Link in on L, Link leaves downhill R)
31.8 Straight (L=TG) N40 37.517 W111 30.932
32.5 Little Chief joins L, keep straight
N40 36.949 W111 30.828
32.6 Cross DT N40 36.882 W111 30.770
32.9 Keep straight (L=to TG) N40 36.821 W111 30.594
33.2 Cross Guardsman Road N40 36.979 W111 30.451
33.3 Keep straight (L=Tour des Suds)
N40 37.023 W111 30.400
33.5 Straight (Team Big Bear)
N40 37.111 W111 30.155
34.9 Back at Deer Valley
Getting there: In Park City, follow the signs toward Deer Valley Resort. To get to the upper (Silver Lake) lodge, turn left on Royal Drive just after the road divides -- before you actually see the Snow Park lodge. Drive 4 miles uphill, following the signs. When you come to a parking lot on your right, surrounded by tall buildings, pull in. From the lot, angle southeast between buildings until you arrive at a wide open area. Your ride will start by aiming right, coast downhill to below the underpass. As you pass under, turn left onto singletrack. This is the Midmountain Trail.
Bike services, water, bathrooms are near the lift by Silver Lake Lodge. On the ride, you'll pass the Red Pine Lodge at The Canyons, where you'll find food, water, and bathrooms.