Delta de Anza and Mokelumne Trails Loop

This touring cycling loop is approximately 58 km (36 miles) long. Based on an average cycling pace, it typically takes around 3 hours and 36 minutes to complete, though this can vary depending on your speed, stops, and fitness level.

The route is predominantly paved with asphalt, making it suitable for touring bikes. While generally accessible, some segments of the Delta de Anza Trail can be steep, particularly around Willow Pass, near Los Medanos College, and Marchetti Park, as well as portions on both sides of Canal Park in Antioch. The Mokelumne Trail also features asphalt surfaces, with some brief sections along sidewalks in residential areas.

The combined trails offer varied scenery. You'll pass through communities, business districts, schools, and parks, with views along the picturesque Carquinez Strait. The route also provides access to natural areas like Black Diamond Mines Regional Preserve and Contra Loma Regional Park. The Mokelumne Trail runs along a wide, grassy corridor and through residential subdivisions, offering glimpses of the Contra Costa Canal and the rolling hills of East Contra Costa County.

Yes, both the Delta de Anza and Mokelumne Trails are multi-use and generally dog-friendly. However, dogs must be kept on a leash at all times, and you are responsible for cleaning up after your pet. Always check for specific signage or local regulations, especially when passing through parks or residential areas.

The trails are enjoyable year-round, but spring and fall generally offer the most pleasant touring cycling conditions with mild temperatures and less chance of extreme heat or heavy rain. Summer can be hot in Contra Costa County, so starting early in the day is advisable if cycling during warmer months. Winters are typically mild, but occasional rain showers can occur.

There are numerous access points and parking options along both the Delta de Anza and Mokelumne Trails, as they connect various communities and parks. Look for parking near community parks or trailheads in cities like Antioch, Pittsburg, and Brentwood. Specific parking details can often be found on local city or park district websites.

Generally, there are no specific permits or entrance fees required to cycle directly on the Delta de Anza or Mokelumne Trails themselves. However, if you plan to enter specific regional parks like Contra Loma Regional Park or Black Diamond Mines Regional Preserve that are adjacent to the trails, there might be day-use fees or parking fees. Always check the East Bay Regional Park District website for the most current information regarding fees and regulations for specific parks.

The Delta de Anza Regional Trail is part of the Juan Bautista de Anza National Historic Trail, commemorating the 18th-century expedition. You'll find interpretive stops providing historical context. The route also passes near natural areas like Black Diamond Mines Regional Preserve, which has historical sites related to former coal mining towns. The Mokelumne Trail includes a bicycle and pedestrian overcrossing for State Route 4, enhancing safety and continuity.

Yes, both trails pass through or near numerous community parks, which often provide convenient rest stops with amenities such as restrooms, drinking fountains, and picnic areas. It's always a good idea to carry sufficient water, especially on longer rides, as the availability of fountains can vary.

Yes, the route primarily utilizes the Delta de Anza Regional Trail and the Mokelumne Trail. It also passes through sections of the ADT - California - T - Seg 6 and the Marsh Creek Trail, allowing for connections to a broader network of paths in the region.

The East Bay Regional Park District manages many of the parks and trails in the area. General regulations include staying on marked trails, keeping dogs on leash, packing out all trash, and being mindful of other trail users (hikers, equestrians). Specific rules may apply to certain areas or activities, so it's always best to consult the official East Bay Regional Park District website for detailed regulations before your visit.

Key highlights along the route include the Delta De Anza Regional Trail (West Section/Pittsburg), offering scenic views and historical context. You'll also pass the Contra-Costa Canal - Delta-DeAnza / Mokelumne Trail Jctn, which is a significant intersection for connecting the two main trails of this loop.