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Rockville Park Loop

 4.0 (47)

The name says it all - Get ready for ROCKVILLE!

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537' 164 m


124' 38 m


851' 259 m


876' 267 m



Avg Grade (3°)


Max Grade (10°)

Dogs Leashed

E-Bikes Not Allowed

$3 Park Use Fee (NOT PARKING FEE)


Miles and Miles of narrow singletrack with Rocks everywhere. Lots of climbing and descent options on so many trails. The loop I listed follows the outside of the park (easier trails, MOSTLY). This place is a technical riding training area. You'll get twice the workout in half the distance, guaranteed.

Need to Know

Pay attention to the trail markers. Most areas have very technical sections with low hanging tree limbs EVERYWHERE. At 6'3 I was constantly surprised by just how low I had to duck (OUCH).


Starting from the parking area, it's a nice easy ride up Rockville Trail (basically fire-road). Continue along the road until you reach the paved road. Take a left and within a couple hundred yards you'll see a gated area off to the left leading to Lower Tilley Trail.

Although this trail starts off moderate, it rapidly gets very narrow and has some very technical areas. I ran the loop clockwise for this ride, but in general, I would recommend instead to run this loop counter-clockwise. It can be done both ways but the counter-clockwise direction is a bit easier and is the most commonly used route. After coming back to your start point, exit the gated area and turn left heading along Lower Lake Loop Trail. You'll pass through a mini rock garden (marked) and continue to Bay Area Ridge Trail.

The BART is basically just a loop around a small lake in the center of the park but there are more than a dozen different trails marked BART. Follow along this trail until you see a steep fire-road climb to your left. Head up this climb until you reach Green Valley Trail. Head down this rocky steep descent until it changes into Black Oak Trail. You'll begin a gradual climb eventually the trail will come to a gate that you must pass before reaching Middle Mystic Trail. Continue along this trail which has a nice downhill with a switchback and several VERY LOW HANGING TREE LIMBS...., Jockey Junction a short connector will put you on Outside Loop Trail (If you choose Unknown Trail it is a Black Diamond much more technical trail).

Along the outside loop trail is a short section called Cliff View, nice view of the valley from here. Outside Loop Trail will then connect with Cave Trail (I dismounted for a short extremely technical downhill through a rock gully to Lake Front Trail. Follow this trail back to the center lake, along this trail you'll find several technical sections along with a couple switchbacks, you'll then connect with the the Bay Area Ridge Trail (BART) again head uphill along a steep fire-road to a nice technical downhill across some granite slabs on the Quarry Trail. The trail is all downhill back to the Parking Area.

You can run this park in literally hundreds of different combinations but whatever way you decide to go expect a lot of climbing with tons of technical riding and some very nice (and fast) downhills. Almost nothing in this park is flat, Enjoy!


Shared By:

Shayne Holderby with improvements by Julian C

Trail Ratings

  4.0 from 47 votes


  4.0 from 47 votes
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25,320 Since Sep 22, 2013



Taking you through Rockville on my preferred ride.
Jun 22, 2016 near Green V…, CA
Rockville Hills Regional Park is a great place to ride mountain bikes with your buddies!
Jan 18, 2017 near Green V…, CA
"California hospitality"... a floor pump and basic tools provided at a trail intersection
May 29, 2013 near Green V…, CA
Just a quick ride with a couple friends. It was the "butt" guys first time there.
Jun 11, 2016 near Green V…, CA
Cloud covered Mount Diablo toward the left
May 29, 2013 near Green V…, CA
The "lake" at the bottom of Rock Garden
May 29, 2013 near Green V…, CA


Current Trail Conditions

Minor Issues 18 days ago
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Sep 18, 2022
Sarah Marian
Awesome loop at Rockville! Lots of fun climbs, descents, and rock gardens. Little Knopp's Bakery nearby for amazing pie & spanakopita after! — 1h 40m
Jan 30, 2022
Word ( Pollard
First time out! — 1h 40m
Nov 12, 2021
dave Er
Aug 2, 2021
Kevin Hu
Mar 6, 2021
James Bishop
Lots of tech! 23mi
Feb 25, 2021
Pascual Mora
Nov 11, 2020
Ana Alex
Oct 10, 2020
Steve Harvey