Artist Point–Holey Rock, 10 sights is a 16.1-mile out-and-back in Mount Diablo State Park near Walnut Heights, CA. The route passes Bob Pond, TwinPonds, Twin Ponds and Holey Rock before reaching Artist Point at the turnaround, 8.1 miles in. It climbs 3,307 ft, with sections as steep as 31% grade, and is mostly dirt. It scores 76/100 on the Ambleway Wildness scale: genuinely wild.
Elevation
0 mi495 – 1,742 ft · steepest grade: 31%16.7 mi
Getting there
Trailhead: Hanna Grove Trail 37.89203, -122.00323
Nearest town Walnut Heights, CA
Directions
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Artist Point–Holey Rock, 10 sights
16.1 mi · ▲ 3,307 ft · 7 hr 1 min
Elevation 496–1,744 ft
Out & Back · Mount Diablo State Park
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.
- 0.5 miContinue straight onto Twin Ponds Loop Trail, heading S.
- 50 ftTurn right onto Borges Ranch Trail, heading S.
- 50 ftPass TwinPonds.
- 50 ftPass Twin Ponds.
- 0.5 miBear right onto Briones to Mt. Diablo Regional Trail, heading SE.
- 0.8 miBear right, heading SE.
- 0.9 miContinue straight onto Wall Point Road, heading E.
- 2.2 miTurn left onto Secret Trail, heading E.
- 50 ftTurn right onto Wall Point Road, heading NE.
- 1.1 miTurn right onto Summit Trail, heading S.
- 0.4 miSharp right onto Deer Trail, heading W.
- 0.9 miSharp left onto West Fossil Ridge Road, heading E.
- 0.5 miPass Holey Rock.
- 150 ftTurn right onto West Fossil Ridge to Artists Point Trail, heading SE.
- 0.1 miReach Artist Point, then turn around and head back the way you came.
- 0.1 miTurn left onto West Fossil Ridge Road, heading SE.
- 0.5 miSharp right onto Deer Trail, heading NW.
- 0.9 miSharp left onto Rock City Camp Road, heading E.
- 0.4 miTurn left onto Wall Point Road, heading E.
- 1.1 miTurn left onto Secret Trail, heading NW.
- 50 ftTurn right onto Wall Point Road, heading NW.
- 2.2 miContinue straight onto Briones to Mt. Diablo Regional Trail, heading W.
- 0.3 miBear left, heading NW.
- 1.4 miBear left, heading NW.
- 0.1 miBear right, heading NW.
- 150 ftContinue straight onto Borges Ranch Trail, heading NW.
- 450 ftBear left, heading NW.
- 0.2 miTurn left onto Twin Ponds Loop Trail, heading W.
- 50 ftContinue straight onto Borges Ranch Trail, heading W.
- 0.5 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
85% dirt15% 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 1.4 mi in (~43 min). Leave by 7:13 PM for the 8:16 PM sunset. Back at your car by 9:07 PM, after dark — bring a headlamp.
Good to know
- Drinking water at the trailhead
- Parking lot at the trailhead
Other ways to reach this destination
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
- Fossil Hill–Bob Pond, 7 sights 5.2 mi · ▲ 799 ft
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