East Bay – Contra Costa County

open trail map

Click image and zoom in on the blue trail

  • Blue – East Bay – Contra Costa County
  • Purple – Camanche – Pardee
  • Orange – Upper Mokelumne River Canyon
  • Delta and Middle Mokelumne Segments are not reflected here, their alignment is not defined

Waypoints (KMZ file) download page. After downloading, view in a GPS app on your device, or on Google Earth

East Bay Regional Parks maps are now mobile friendly too!


  • West boundary is Carquinez Strait Regional Shoreline’s Nejedly Staging Area, in Martinez. Another alternative is Inspiration Point in Berkeley. Both overlook the San Francisco Bay where the Mokelumne River ends. This is also Mokelumne Coast to Crest Trail’s western end.
  • East boundary is at Big Break Regional Shoreline in Oakley, adjacent to the gateway to the Delta across the Antioch Bridge
  • Located in
    • East Bay Municipal District’s San Pablo Reservoir Recreation Area
    • Various East Bay Regional Parks
    • Various East Bay Regional Park regional trails
    • Mount Diablo State Park
  • Parks and trails are regulated independently by each park, preserve, open space or trail for hiking, equestrian use, and mountain biking. Visit specific websites or call for more information

Day Rides & Hikes East Bay Regional Parks website is the place to go for a comprehensive trail list and descriptions.



Hiking, biking and horseback riding activities can be combined with camping at designated campgrounds. Also consider fishing, swimming, birding, wildflower walks, highpointing, peak bagging, trail running

  • Signage – Where the trail is signed it is marked at intervals with oval colored logo signs on trail posts.
  • Leave-No-Trace—The MCCT Council supports and encourages LNT practices while on the trail.
  • Camping – is regulated by individual parks
  • Fire – Fire danger can be extreme, and fires, camp stoves, and smoking may be prohibited.
  • Side Trips – TBA

Trail Conditions
Trails vary widely in grade. Climate varies depending on location and season

Various trailheads throughout the segment. Each park and trail manages trailheads independently

Accomplishments to date

Mount Diablo State Park staff and Mount Diablo Interpretive Association (MDIA)

  • Defined trail alignment
  • Signed trail junctions in the trail footprint
  • Opened trail between Briones-Mt Diablo Regional Trail and the town of Clayton

East Bay Regional Park District

  • 1993: EBRPD dedicates the MCCT
  • October 2009: First map panel installed at Nejedly Staging Area in Carquinez Regional Shoreline
  • March 2011: Defined alignment on existing trail between Nejedly Staging Area and Big Break Regional Shoreline
  • March 2011 – present: posted trail signs at trail junctions and trail heads; update website maps and brochures

East Bay Municipal Park District

  • Dedicated trail
  • First section of MCCT signed here
  • Defined alignment on existing trail in San Pablo Reservoir Recreation Area
  • Signed trail junctions

Mokelumne Coast to Crest Trail Council

  • Collaborated with EBRPD to complete signage project across all EBRPD lands
  • Collaborated with Mount Diablo State Park officials and MDIA to approve and complete signage project

Recent project status

EBRPD is upgrading Orwood Bridge and plans to extend the MCCT to the bridge. Orwood Bridge is located east of Brentwood. EBRPD’s plans call for a new park in the area adjacent to the bridge, in the Orwood tract. It will be called the Great Delta Park.

Remaining Work to Complete Segment

Signage is needed along Big Break Trail and at Big Break Regional Shoreline Park.

The Trail Council is collaborating with the Delta Protection Commission to sign trail across the Antioch Bridge and in to the Delta.

East Bay Regional Park District (EBRPD)
Contact: Anne Kassebaum, Chief of Interpretive & Recreation Services (510) 544-2551
Mark Ratz, Chief of Park Operations (510) 544-2511
Sean Dougan, Trails Development Program Manager (510) 544-2611

Mount Diablo State Park
Contact: Mark Sinclair, Park Maintenance and Trail Coordinator (925) 837-6122

Mount Diablo Interpretive Association (MDIA)
Contact: Mike Woodring

East Bay Municipal Utility District (EBMUD)

Delta Protection Commission
(916) 375-4534

Blueprint for Contra Costa & Solano Counties, September 2010

American Discovery Trail

Contact: John Fazel runmtns@prodigy.net

Upcoming Events and Volunteer Opportunities

Recent Events

Anniversary Trail Party on Carquinez Strait Loop October 3, 2009

We hope you enjoy the MCCT in East Bay! To receive additional information, contact:
Mary Boblet, Trail Council Director 209-287-2268, mboblet@gmail.com