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Mt. Diablo Summit Loop - South

Intermediate/Difficult
 4.7 (10) RECOMMENDED ROUTE

A long loop run through Mt. Diablo Foothills and to the summit of Mt. Diablo.


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Map Key

16.0

Miles

25.8

KM

80%

Runnable

3,725' 1,135 m

High

616' 188 m

Low

3,679' 1,121 m

Up

3,678' 1,121 m

Down

9%

Avg Grade (5°)

34%

Max Grade (19°)

Dogs No Dogs

Features Spring · Views · Wildflowers

Dogs allowed on some trails but not on others.

Overview

A great long loop through the Mt. Diablo foothills and all the way to the summit. There are some very steep sections, particularly on the descent. Little rest for the weary on this run—almost every section is uphill or downhill and the flat sections are few and far between here.

Need to Know

There are ticks, rattlesnakes, bobcats, and mountain lions in this area. I personally had to brush off a few ticks after going through long grass, and saw a bobcat run across the trail about 20 ft. in front of me (also had a turkey hanging out on the trail for a bit).

Description

This is a tough, long loop starting in the foothills and taking you to the summit of Mt. Diablo. Incredible views are available at almost every point along the way. Despite the heavy rains in early 2017, the trails are mostly in good shape.

You take Wall Point Road to the Summit Trail. The Summit Trail will briefly become Green Ranch Road, and then rejoin Summit Trail. The entire Summit Trail is a moderate uphill with some steep sections. There are very few flat sections or descents, with the exception of parts of the rolling foothills, primarily on Wall Point Road prior to the Summit Trail.

Once you reach the summit, turn back down the Summit Trail, across the upper parking lot to the South Juniper Trail. Proceed down Juniper to Deer Flat Fire Road. Then, take Burma Road to Angel Kerley Rd to Little Pine Creek Trail to Stage Road Trail. From Stage Road Trail, turn down the BBQ Terrace Road back to Wall Point Road, which you can follow back to the parking lot. There are some seriously steep downhill portions here. Many of the downhill sections have loose gravel/rocks, so careful footing is required.

Contacts

Shared By:

Ryan Fanning

Trail Ratings

  4.7 from 10 votes

#818

Overall
  4.7 from 10 votes
5 Star
70%
4 Star
30%
3 Star
0%
2 Star
0%
1 Star
0%
Recommended Route Rankings

#141

in California

#818

Overall
64 Views Last Month
6,491 Since May 15, 2017
Intermediate/Difficult

0%
0%
27%
0%
73%
0%

Photos

Summit Trail
Oct 22, 2017 near Blackhawk, CA
The winter sun shines over Pine Ridge from Burma Road in Mount Diablo State Park
Jan 5, 2018 near Diablo, CA
Diablo Summit observation deck lookout
Oct 22, 2017 near Blackhawk, CA
Wall Point
Oct 22, 2017 near Diablo, CA
Summit Trail
Oct 22, 2017 near Blackhawk, CA
We only saw 2 other people on our Monday hike on the North Juniper Trail!
Feb 4, 2016 near Blackhawk, CA

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Current Trail Conditions

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All Clear 52 days ago See History
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Check-Ins

Dec 28, 2019
Jacob Klinker
Bit muddy from recent rain, but trail is in good shape overall. 15mi — 2h 45m
Mar 3, 2018
Isley Gao
16mi — 5h 00m