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Hike Details for Rock City

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Mt. Diablo State Park
Rock City
RSVPs - 59 -- YES: 17 NO: 35 MAYBE: 7

Rock City
Click the Staging Area/Trail Name above for park information.
City: Danville
Region: EastBay
Park: Mt. Diablo State Park
Park Map URL: Click Here
Alternate URL: Click Here

Sunday, October 14, 2018 @ 9:00 AM


CarPool Option:
Meet @ 8:15 AM
At: Danville Park & Ride, Sycamore Valley Rd & I-680, Danville
Click Here for a Map to CarPool Meeting Spot


Event Notes:

Knobcones and Balancing Rocks Hike


NOTE EARLIER START TIME!! Join us for a hike on Mount Diablo at 9:00 am. Hiker's choice of a moderately challenging 6.5 mile/1600' short hike or a challenging 8.3/2000' hike. Please note: This hike involves a detour through a washed out creek bed and involves a little bit of climbing down and back up.

Please either print out or download to your phone the trail route map here. Starting at Rock City, the hike starts on the Trail Through Time near the Big Rock picnic area, cross South Gate Road and continue past the restrooms on Madrone Canyon Trail. Continue to the Sycamore Creek intersection, where you must climb through a washed out creek bed, turning left. Continue straight on Blackhawk Ridge Road up to a 5-way intersection, the hikes diverge here. Short hike will turn hard left on Utility Road. Not quite to the end you will find an unmarked single track trail off to the left, take it. This trail winds up through the chapparal and some great rock formations climbing toward Knobcone Point. When you hit a fire road, turn left on the Utility Road. At the top, turn left on Knobcone Point Road and continue to Balancing Rock for a snack break. Continue on Knobcone Point for 2 miles, then straight onto Curry Canyon Road and through the parking lot at Curry Point. Stay on the right side of South Gate Road, then cross at the crosswalk and continue on Camp Force Trail. Turn left to go down Summit Trail, it will bring you down to South Gate Road, then back to the right. At a junction with Summit, Wall Point Road and the Trail Through Time, continue on Summit down below Sentinel Rock. Continue into the Live Oak Campgrounds. Please stop here and enjoy some baked goods at Steve's campsite (the big one by the fallen Oak Tree). Continue up the campground roadway, then back up the roadway to the start.

The long hike turns slight right on Black Hills Road, right on Black Hawk Ridge Road to the top for a break. Loop around and back down, then follow the directions for the short hike above. Flour arrows will mark your route.

Please note: This group does not stay together on the hike instead relying on arrows put on the ground with flour to mark turns. You are encouraged to stay with others who are hiking your speed and you should also carry the trail route map (link above) either downloaded to your phone or in paper form.

Contact: Steve Smith
Email: [email protected]
Cell Phone: (925) 325-0805


Trail Notes:

Mount Diablo offers 170 miles of hiking trails and is the gem of Contra Costa County.


Trailhead Directions:
Click Here for a Map

From I-680 southbound, take the El Cerro Blvd exit. Turn left onto El Cerro Blvd. After 0.9 miles stay straight to go onto Diablo Road. After 2.2 miles turn left onto Mt Diablo Scenic Blvd. Continue for 3.8 miles to South Gate Entrance Station. Then about 0.9 miles for the first left up to the Rock City Parking area. From I-680 northbound, take Diablo Road exit 39 in Danville. Turn right onto Diablo Road for 0.7 miles then turn right to stay on Diablo Road. After 2.2 miles turn left onto Mt Diablo Scenic Blvd. Continue for 3.8 miles to South Gate Entrance Station. Then about 0.9 miles for the first left up to the Rock City Parking area.

Parking Fee: $10
Other Fees: None

The trailhead information on this page was last updated
Thursday, November 30, 2017.

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