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Miwok Trail / Hardy Canyon Trail Loop



4.8 mile 7.7 kilometer loop
84% Runnable


Ascent: 955' 291 m
Descent: -954' -291 m
High: 1,058' 323 m
Low: 228' 70 m


Avg Grade: 8% (4°)
Max Grade: 25% (14°)


No Dogs
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Trail shared by Coach Don Williams

A great loop through Round Valley Regional Preserve.

Coach Don Williams

Features Birding · Spring

Opens at 8am. No dogs, no drones. Closing times vary with the season between 5pm and 8pm:
Nov - Feb 5pm
Feb and Mar 6pm
Mar, Sep, Oct, Nov 7pm
April - Sep 8pm


This is an easy to moderate 4.8-mile long loop through Round Valley Regional Preserve. There are many trails that branch off the main loop that can be used to lengthen your run.

Runner Notes

Nice mixed slope terrain. This can be a nice route for running as there are consistent ground conditions.


There are many options for you on this loop. From the parking area, head south on the Miwok Trail, reaching a junction shortly after leaving the trailhead. At the junction, turn left on Hardy Canyon Trail to take this loop clockwise. You'll start with a fairly flat run on nice wide trail. Gradually, you'll begin to climb as the Hardy Canyon Trail loops south around the park and follows the drainage up to the half-way mark all on shaded singletrack.

You'll reach the halfway point right about the time you cross the saddle and start descending. Once you start your descent, you're mostly on open singletrack until you meet the Miwok Trail junction. At the junction, take a right onto Miwok Trail. From here, the trail is not always obvious as you can choose several singletracks that weave in and out (keep an eye on the Trail Run Project mobile app!), or take the fire road back to the parking lot.

There is some accessible water in creeks and drainages along the Miwok Trail that quickly dry up after rainy season.

Flora & Fauna

Oak trees and open fields. If you look carefully in the appropriate seasons you'll find hives of ladybugs and tadpoles and small frogs near the creeks.

History & Background

The land was purchased in 1873 by Irish immigrant Thomas Murphy who used it as a ranch. In 1988 his grandson sold 700 acres of Round Valley to the East Bay Regional Park District to be preserved as open space for public enjoyment. All historic objects are protected; please do not disturbed them.

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May 16, 2019
Daniel Garcia
May 18, 2018
Marie Kinzer

Trail Ratings

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  4.0 from 3 votes
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in California


36 Views Last Month
658 Since Oct 30, 2017



Typical view on the backside of the trail
Oct 30, 2017 near Byron, CA
Round Valley Regional Preserve Miwok Trail.
Jan 12, 2018 near Byron, CA
Nice view of Mount Diablo heading west on the top of the trail.
Oct 30, 2017 near Byron, CA


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