Park Santa Cruz Mtns Loop Grade Miles Total To Go
  0.0 0.0 36.0
1 Castle Rock SP Head north on Skyline Trail to Saratoga Gap Vista Point (parking lot) 3.1 3.1 32.9
2 Saratoga Gap OSP Cross Hwy 9, continue north on Saratoga Gap Trail (aka Ridge Trail) 1.7 4.8 31.2
3 Long Ridge OSP At the intersection with Charcoal Road, go straight across 0.3 5.1 30.9
4 Long Ridge OSP Cross Skyline Blvd, enter gate LR01, take Hickory Oaks Trail 1.6 6.7 29.3
5 Portola Redwoods SP Go through gate LR08, take Ward Road 0.9 7.6 28.4
6 Portola Redwoods SP Bear right onto Slate Creek Trail 0.8 8.4 27.6
7 Portola Redwoods SP Bear right again onto Slate Creek Trail towards the trail camp 0.8 9.2 26.8
8 Portola Redwoods SP Cross Slate Creek, and head up towards the trail camp 0.9 10.1 25.9
9 Portola Redwoods SP From the trail camp, go left towards Summit Trail 1.2 11.3 24.7
10 Portola Redwoods SP From the summit, go left on Summit Trail towards Park HQ 0.9 12.2 23.8
11 Portola Redwoods SP About 1/2 mile before Park HQ,  go left on the service road 0.2 12.4 23.6
12 Portola Redwoods SP Take the service road past Iverson's Cabin up to Old Haul Road 0.2 12.6 23.4
13 Pescadero Creek CP Cross the Old Haul Road and take the Portola Trail 1.4 14.0 22.0
14 Pescadero Creek CP Continue up the hill on the Butano Ridge Trail 1.7 15.7 20.3
15 Pescadero Creek CP Take a left towards Big Basin, and enjoy the scenic overlook 0.6 16.3 19.7
16 Pescadero Creek CP Continue on past the overlook 0.2 16.5 19.5
17 Private land (hiking OK) Go left on the Basin Trail Easement 0.5 17.0 19.0
18 Private land (hiking OK) Cross the road and pick up the easement trail on the other side 1.0 18.0 18.0
19 Big Basin SP Cross China Grade Road into Big Basin SP 0.1 18.1 17.9
20 Big Basin SP Go left on Basin Trail 3.1 21.2 14.8
21 Big Basin SP Left on Skyline-to-the-Sea back to China Grade Road 0.1 21.3 14.7
22 Big Basin SP Cross the road, take Skyline-to-the-Sea down to Hwy 236 0.5 21.8 14.2
23 Big Basin SP Cross Hwy 236, and continue on Skyline-to-the-Sea 0.9 22.7 13.3
24 Big Basin SP Continue up Skyline-to-the-Sea towards Waterman Gap (Hwy 9 & 236) 3.9 26.6 9.4
25 Castle Rock SP Continue up Skyline-to-the-Sea past Waterman Gap Trail Camp 2.6 29.2 6.8
26 Castle Rock SP Right on Beekhius Road 0.4 29.6 6.4
27 Castle Rock SP Left on Saratoga Toll Road 1.0 30.6 5.4
28 Castle Rock SP Right on Travertine Springs Trail towards Castle Rock Trail Camp 2.1 32.7 3.3
29 Castle Rock SP Continue on the fire road to Castle Rock Trail Camp 0.7 33.4 2.6
30 Castle Rock SP Back to trailhead via Saratoga Gap Trail 2.6 36.0 0.0
Disclaimer:  All mileages are approximate; all grades are "best guess" -- total elevation is ~6000 feet