George Miller Trail

  • Picnic
  • Accessible Restrooms
  • Accessible Parking


  • Picnic
  • Accessible Restrooms
  • Accessible Parking


Carquinez Scenic Drive, Port Costa, CA, 94569
San Francisco Bay Area
5am – 10pm to bicycles & pedestrians. Cars are limited to seasonal gate schedules at staging/parking areas at both ends of the trail.
On leash
Last Visited:
October 2022
The George Miller Trail, named to honor former Congressman George Miller, Is nestled between the two noncontiguous sections of Carquinez Strait Regional Shoreline.

Trails and Pathways

George Miller Trail
Time to Complete:
1 hour
Trail Length:
2-4 total miles
Typical Width:
4 ft. & above
Typical Grade:
Mostly gentle
Typical Terrain:
Trail Overview: The winding scenic George Miller Trail (GMT) takes you 1.7-miles gate to gate from its west end at Port Costa, to Martinez at its east end. Sitting high above the shoreline it provides spectacular views of Carquinez Strait, Benicia’s waterfront, Mt Diablo, and an active railroad line; you might hear an occasional train pass by. If you’re a manual wheelchair rider and looking for a good workout you’ll find plenty of dips and climbs to build up your muscles. Mature oaks dot the rolling grasslands and a scampering lizard may cross your path.

For an off-road adventure, follow the fire road trail, that when traveling towards Martinez, is located just beyond the eastern trail gate and the roadside parking. It gradually climbs inland along the hillside amongst towering oaks and birdsong filled the air on my early June visit. I personally found this trail more peaceful than the GMT. According to the park’s map it’s the Franklin Ridge Loop Trail although the sign at the gate said Fire Trail. I followed the lower portion of the loop because at the first fork the upper part of the loop climbed steeply. Unfortunately, I had to turn around after ¼ quarter mile so as not to disturb a hornet’s nest.

More Info: There's very few level stretches. At 1.3 there is a tenth- mile stretch that has a 13% grade. Cross slopes on the Fire Trail may be greater than 2% The Fire trail is compacted dirt and may be muddy after rains.

Accessibility Features

The facilities listed below meet all of our access criteria unless otherwise noted.
Accessible Parking:
Yes – designated accessible parking, van accessible, firm, level or slope no greater than 2%;

Both the Port Costa & Nedjely Staging Areas have accessible parking. From the Nejedly trailhead you’ll need to hike on Carquinez Scenic Dr. for over 1-mile to reach the trail entrance or you can drive past the Nejedly parking lot and park on the road (no designated accessible spaces) closer to the trailhead.

Accessible Restroom:
Yes – Portable units are at Port Costa & Nedjely Staging Areas

Accessible Picnic Table:
Yes – firm & stable path to tables, firm & stable surface, 27" or greater knee clearance

Good to Know:
There's very little shade on the trail. Beware of poison oak. Only one bench the entire trail.

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