Sentinel Rock–Trail Through Time, 3 sights is a 7.7-mile out-and-back in Mount Diablo State Park near Alamo Oaks, CA. The route reaches Sentinel Rock at the turnaround, 3.8 miles in. It climbs 1,498 ft, with sections as steep as 17% grade, and is mostly dirt. It scores 76/100 on the Ambleway Wildness scale: genuinely wild.
Elevation
0 mi653 – 1,752 ft · steepest grade: 17%7.9 mi
Getting there
Trailhead: Wall Point Road 37.86265, -121.97848
Nearest town Alamo Oaks, CA
Directions
AMBLEWAYwww.ambleway.com
Sentinel Rock–Trail Through Time, 3 sights
7.7 mi · ▲ 1,498 ft · 3 hr 19 min
Elevation 653–1,752 ft
Out & Back · Mount Diablo State Park
Trailhead: Wall Point Road · 37.86265, -121.97848
Weather Sep 20: sunrise 6:55 AM · sunset 7:10 PM
Parking lot at the trailhead
- Start on Wall Point Road, heading SE.
- 2.5 miTurn left onto Secret Trail, heading E.
- 50 ftTurn right onto Wall Point Road, heading E.
- 1.1 miBear right onto Trail Through Time, heading SE.
- 0.2 miTurn left onto CCC Trail, heading NW.
- 250 ftReach Sentinel Rock, then turn around and head back the way you came.
- 250 ftTurn right onto Trail Through Time, heading NW.
- 0.2 miBear left onto Wall Point Road, heading NE.
- 1.1 miTurn left onto Secret Trail, heading W.
- 50 ftTurn right onto Wall Point Road, heading W.
- 2.5 miArrive back at the trailhead.
Each distance is the walk from the previous step. Tap a step for a map of its junction.
Trail surface
100% dirt
Weather
Sunrise 6:55 AMSunset 7:10 PM
Sunset
The best sunset spot on this hike is 1.0 mi in (~35 min). Leave by 6:14 PM for the 7:10 PM sunset. Back at your car by 7:49 PM, after dark — bring a headlamp.
Good to know
- Parking lot at the trailhead
Other ways to reach this destination
More from Wall Point Road Trailhead
- Willow Spring Pond–Twin Ponds, 9 sights 10.3 mi · ▲ 1,560 ft
- Borges Ranch Trail–Briones to Mt. Diablo Regional Trail, 3 sights 7.3 mi · ▲ 1,227 ft
- Sugarloaf Hill–Borges Ranch Trail, 5 sights 10.5 mi · ▲ 1,665 ft
- Bob Pond–Twin Ponds, 6 sights 8.8 mi · ▲ 1,588 ft
- Sulphur Creek Pond–Bob Pond, 8 sights 7.9 mi · ▲ 1,375 ft
- Pine Pond–Burma Road, 5 sights 5.5 mi · ▲ 1,142 ft
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