Delta de Anza, Mokelumne & Marsh Creek Trails Loop

The loop is predominantly paved, making it suitable for road cycling. However, the terrain varies. The Delta de Anza Regional Trail has wide, well-maintained sections but also includes steep climbs, particularly near Los Medanos College and over Willow Pass. The Mokelumne Trail features wide, paved sections, often following a former railway corridor. The Marsh Creek Trail is largely flat and paved, offering a gentler experience. Be aware that some composite routes might include short unpaved segments.

This loop is generally considered to be of moderate difficulty for road cycling, requiring good fitness. While the Mokelumne and Marsh Creek Trails offer flatter, easier segments, the Delta de Anza Trail introduces significant inclines and descents, such as the challenging Willow Pass section. Your overall experience will depend on the specific segments you choose to include in your loop.

The scenery is diverse. The Delta de Anza Regional Trail offers views along the Contra Costa Canal, connecting urban areas with parks and business districts, and providing access to Contra Loma Regional Park and Black Diamond Mines Regional Preserve. The Mokelumne Trail passes through wide, grassy corridors and residential areas. The Marsh Creek Trail is particularly scenic, following Marsh Creek with views of Round Valley Regional Preserve and distant Mount Diablo, enhanced by native plant restoration projects.

Given the interconnected nature of these trails, there are multiple access points with parking available in the communities they traverse, such as Concord, Bay Point, Pittsburg, Antioch, Oakley, and Brentwood. Look for parking near regional parks or community centers that border the trails.

The trails are multi-use and generally dog-friendly, but specific rules regarding leashes and waste disposal apply. Always keep your dog on a leash and be prepared to clean up after them. When passing through regional parks like Contra Loma Regional Park or Black Diamond Mines Regional Preserve, check their specific dog regulations as they may vary.

Spring and fall typically offer the most pleasant cycling conditions with milder temperatures. Summers can be hot in Contra Costa County, so if cycling then, it's best to start early in the morning. Winters are generally mild but can bring rain, making some sections potentially wet.

Generally, you do not need specific permits or pay entrance fees to cycle on the Delta de Anza, Mokelumne, or Marsh Creek Trails themselves, as they are public multi-use paths. However, if you detour into specific regional parks or preserves along the route, check their individual policies as some may have day-use fees or specific regulations.

Yes, road cyclists should exercise caution on certain sections. The Delta de Anza Regional Trail has steep grades, particularly near Los Medanos College and over Willow Pass, which require attention on descents. Additionally, these trails are multi-use, shared with walkers, runners, and equestrians. There have also been reports of motorbikes on parts of the Delta de Anza Trail in Antioch, so always be alert and share the path respectfully.

Yes, this loop is part of an extensive network. The route itself utilizes significant portions of the Delta De Anza Regional Trail, Mokelumne Trail, and Marsh Creek Trail. It also connects to various community parks, business districts, and residential areas. The trails are designed as green transportation corridors, linking communities and providing access to amenities. The Delta de Anza Trail also commemorates a historic expedition route.

Yes, as these trails connect various communities and parks, you will find access to amenities such as restrooms, drinking fountains, and picnic areas at different points along the route. Planning your stops in advance can be helpful, especially on longer rides.

While the overall loop is rated moderate, sections of the Marsh Creek Trail and parts of the Mokelumne Trail are largely flat and paved, making them suitable for beginners or those seeking an easier ride. The more challenging, steep sections are primarily found on the Delta de Anza Regional Trail. The route is best suited for road bikes due to the predominantly paved surfaces, though some unpaved segments might be encountered depending on your exact chosen path.