Sulfur Spring–Briones to Mt. Diablo Regional Trail, 4 sights is a 4.5-mile out-and-back in Mount Diablo State Park near Alamo Oaks, CA. The route reaches Sulfur Spring at the turnaround, 2.3 miles in. It climbs 771 ft, with sections as steep as 16% grade, and is mostly dirt. It scores 82/100 on the Ambleway Wildness scale: genuinely wild.
Elevation
0 mi371 – 860 ft · steepest grade: 16%4.6 mi
Getting there
Trailhead: Wall Point Road 37.86265, -121.97848
Nearest town Alamo Oaks, CA
Directions
AMBLEWAYwww.ambleway.com
Sulfur Spring–Briones to Mt. Diablo Regional Trail, 4 sights
4.5 mi · ▲ 771 ft · 1 hr 53 min
Elevation 372–861 ft
Out & Back · Mount Diablo State Park
Trailhead: Wall Point Road · 37.86265, -121.97848
Weather Aug 3: Mostly clear, high 100°F / low 67° · precip 0% · wind 6 mph · sunrise 6:14 AM · sunset 8:16 PM
Parking lot at the trailhead
- Start on Wall Point Road, heading SE.
- 0.3 miContinue straight onto Briones to Mt. Diablo Regional Trail, heading NW.
- 0.3 miBear right onto Little Yosemite Valley Trail, heading N.
- 0.8 miBear left onto Stage Road, heading W.
- 0.9 miReach Sulfur Spring, then turn around and head back the way you came.
- 0.9 miBear right onto Little Yosemite Valley Trail, heading SE.
- 0.8 miBear left onto Briones to Mt. Diablo Regional Trail, heading S.
- 0.3 miContinue straight onto Wall Point Road, heading SE.
- 0.3 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
65% dirt35% unspecified
Weather
Mostly clearTemperature 100°F67°
Feels like84°Precip0%Wind6 mphUV8Humidity23%
Hourly temperature
100°65°
Sunrise 6:14 AM12 AM3 AM9 AM12 PM3 PM6 PMSunset 8:16 PM
Tue
91°67°
Wed
91°57°
Thu
97°55°
Fri
102°60°
Sat
102°58°
Sun
101°57°
Sunset
The best sunset spot on this hike is 0.6 mi in (~20 min). Leave by 7:36 PM for the 8:16 PM sunset. Back at your car by 8:46 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
- Emmons Canyon Trail & Wall Point Road 3 mi · ▲ 829 ft
- Misko's Regret 4.2 mi · ▲ 799 ft
- Diablo Foothills Regional Park Viewpoint–Buckeye Ravine Viewpoint, 5 sights 4.6 mi · ▲ 866 ft
- Pine Pond–Briones to Mt. Diablo Regional Trail, 7 sights 4.8 mi · ▲ 989 ft
- Sulfur Spring–Briones to Mt. Diablo Regional Trail, 5 sights 5.4 mi · ▲ 920 ft
- Pine Pond–Burma Road, 5 sights 5.5 mi · ▲ 1,142 ft
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