Fossil Hill–Bob Pond, 7 sights is a 5.2-mile out-and-back in Shell Ridge Open Space near Walnut Heights, CA. The route passes Bob Pond, Willow Spring Pond and Bramhall Pond before reaching Fossil Hill at the turnaround, 2.6 miles in. It climbs 799 ft and is mostly dirt. It scores 59/100 on the Ambleway Wildness scale: backcountry feel.
Elevation
0 mi217 – 663 ft5.4 mi
Getting there
Trailhead: Hanna Grove Trail 37.89203, -122.00323
Nearest town Walnut Heights, CA
Directions
AMBLEWAYwww.ambleway.com
Fossil Hill–Bob Pond, 7 sights
5.2 mi · ▲ 799 ft · 2 hr 8 min
Elevation 218–663 ft
Out & Back · Shell Ridge Open Space
Trailhead: Hanna Grove Trail · 37.89203, -122.00323
Weather Aug 3: Clear, high 100°F / low 68° · precip 0% · wind 9 mph · sunrise 6:14 AM · sunset 8:16 PM
Drinking water at the trailhead · Parking lot at the trailhead
- Start on Hanna Grove Trail, heading W.
- 50 ftPass Bob Pond.
- 50 ftTurn left onto Borges Ranch Trail, heading S.
- 0.3 miTurn right onto Briones to Mt. Diablo Regional Trail, heading NW.
- 0.9 miPass Willow Spring Pond.
- 0.1 miBear left, heading N.
- 0.7 miTurn left onto Fossil Hill Trail, heading NW.
- 50 ftPass Bramhall Pond.
- 250 ftTurn right onto Indian Creek Trail, heading W.
- 0.3 miContinue straight onto Fossil Hill Trail, heading NW.
- 0.1 miTurn left onto Kovar Trail, heading S.
- 250 ftReach Fossil Hill, then turn around and head back the way you came.
- 250 ftTurn right onto Fossil Hill Trail, heading SW.
- 0.1 miContinue straight onto Indian Creek Trail, heading E.
- 0.3 miTurn left onto Fossil Hill Trail, heading SE.
- 250 ftTurn right onto Briones to Mt. Diablo Regional Trail, heading SE.
- 0.6 miTurn right, heading E.
- 1.1 miTurn left onto Borges Ranch Trail, heading SE.
- 0.3 miTurn right onto Hanna Grove Trail, heading N.
- 50 ftArrive back at the trailhead.
Each distance is the walk from the previous step. Tap a step for a map of its junction.
Trail surface
97% dirt3% unspecified
Weather
ClearTemperature 100°F68°
Feels like92°Precip0%Wind9 mphUV8Humidity15%
Hourly temperature
100°65°
Sunrise 6:14 AM12 AM3 AM9 AM12 PM3 PM6 PMSunset 8:16 PM
Tue
91°66°
Wed
98°58°
Thu
97°56°
Fri
103°61°
Sat
103°59°
Sun
102°58°
Sunset
The best sunset spot on this hike is 0.4 mi in (~11 min). Leave by 7:45 PM for the 8:16 PM sunset. Back at your car by 8:42 PM — 3 min before dark. Car visible from the viewpoint
Good to know
- Drinking water at the trailhead
- Parking lot at the trailhead
Other ways to reach this destination
- 4.8 mi · loop · via Briones to Mt. Diablo Regional Trail
- 10.5 mi · out & back · via Briones to Mt. Diablo Regional Trail
- 15.9 mi · out & back · via Briones to Mt. Diablo Regional Trail
- 4.8 mi · out & back · via Briones to Mt. Diablo Regional Trail
- 3 mi · out & back · via Briones to Mt. Diablo Regional Trail
More from Hanna Grove Trail Trailhead
- Haystack Hill–Bob Pond, 3 summits 1.5 mi · ▲ 352 ft
- Sulphur Creek Pond–Bob Pond Loop, 4 sights 2.2 mi · ▲ 435 ft
- Diablo Foothills Regional Park Viewpoint–Buckeye Ravine Viewpoint, 5 sights 2.3 mi · ▲ 291 ft
- Bob Pond–Briones to Mt. Diablo Regional Trail Loop, 5 sights 2.4 mi · ▲ 489 ft
- Sulfur Spring–Bob Pond, 5 sights 2.5 mi · ▲ 438 ft
- Buckeye Ravine Viewpoint–Bob Pond, 6 sights 5.7 mi · ▲ 1,085 ft
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