City of Clayton Open Space

Black Diamonds to Mt Diablo Regional Trail

5.3 mi · ▲ 802 ft · 2 hr 10 min

Black Diamonds to Mt Diablo Regional Trail is a 5.3-mile out-and-back in City of Clayton Open Space near Clayton, CA. It climbs 802 ft. It scores 43/100 on the Ambleway Wildness scale: green fringe.

Elevation

0 mi410 – 1,217 ft5.4 mi

Getting there

Trailhead: Black Diamonds to Mt Diablo Regional Trail 37.93872, -121.93143
Nearest town Clayton, CA

Directions

AMBLEWAYwww.ambleway.com

Black Diamonds to Mt Diablo Regional Trail

5.3 mi · ▲ 802 ft · 2 hr 10 min

Elevation 409–1,218 ft

Out & Back · City of Clayton Open Space

Trailhead: Black Diamonds to Mt Diablo Regional Trail · 37.93872, -121.93143

Weather Aug 4: Mostly clear, high 98°F / low 61° · precip 0% · wind 5 mph · sunrise 6:13 AM · sunset 8:16 PM

Transit-accessible: Marsh Creek Road & High Street stop 234 m from the trailhead

  1. Start on Black Diamonds to Mt Diablo Regional Trail, heading SE.
  2. 2.7 miReach Black Diamonds to Mt Diablo Regional Trail, then turn around and head back the way you came.
  3. 2.7 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

50% dirt43% paved7% unspecified

Weather

Mostly clearTemperature 98°F61°
Precip0%Wind5 mphUV8Humidity39%
Hourly temperature
100°60°
Sunrise 6:13 AM12 AM3 AM9 AM12 PM3 PM6 PMSunset 8:16 PM
Tue 91°61°
Wed 94°57°
Thu 103°59°
Fri 107°65°
Sat 107°63°
Sun 106°61°

Sunset

The best sunset spot on this hike is 0.3 mi in (~7 min). Leave by 7:49 PM for the 8:16 PM sunset. Back at your car by 8:38 PM — 7 min before dark. Car visible from the viewpoint

More sunset hikes nearby

Good to know

  • Transit-accessible: Marsh Creek Road & High Street stop 234 m from the trailhead

Other ways to reach this destination

More from Black Diamonds to Mt Diablo Regional Trail Trailhead