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Hiking trails & Routes
Contra Costa County
Antioch

Empire Mine Road Trail

Easy

1

hikers

Empire Mine Road Trail

01:26

5.48km

30m

Hiking

The Empire Mine Road Trail offers an easy hiking experience through the Black Diamond Mines Regional Preserve. You will traverse expansive meadows and pastoral valleys, enjoying gentle climbs and descents across rolling hills. This route covers 3.4 miles (5.5 km) with a modest 110 feet (34 metres) of elevation gain, making it a relaxed outdoor adventure that typically takes around 1 hour and 26 minutes to complete. As you hike, keep an eye out for views of Lone Tree and Horse Valleys, and even distant glimpses of Mt. Diablo to the east.

This trail is a paved road, closed to vehicle traffic, which makes it ideal for a smooth walk or bike ride. You can easily find parking at the trailhead to begin your journey. Its generally flat and paved surface means you can enjoy this route even after rain, as mud is minimized. Consider visiting during cooler parts of the day for the most comfortable experience, especially in warmer months.

Beyond the scenic vistas, the Empire Mine Road Trail holds a touch of local history and intrigue. The preserve itself is known for its mining past, and the trail features unique landmarks like an antiquated railroad track tunnel. This route provides a great opportunity to explore the natural environment and historical context of the Black Diamond Mines Regional Preserve, offering more than just a simple walk.

Last updated: April 23, 2026

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Way Types & Surfaces

Way Types

5.48 km

Surfaces

5.37 km

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Monday 18 May

29°C

15°C

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Frequently Asked Questions

Where does the Empire Mine Road Trail start and where can I park?

The Empire Mine Road Trail is located in Contra Costa County, near Antioch, within the Black Diamond Mines Regional Preserve. While specific trailhead parking isn't detailed, access points are typically found along the preserve's boundaries. It's advisable to check the official East Bay Regional Park District website for the most current parking information and directions to trailheads within the preserve.

Is this trail suitable for beginners or families?

Yes, the trail is graded as 'Easy' and is suitable for all ages, including beginners and families. It features generally flat terrain with gentle climbs and descents, making it a comfortable walk.

What is the terrain like on the Empire Mine Road Trail?

The trail is an 11.0 km (6.8 miles) paved road that is closed to vehicle traffic. The terrain is generally flat, with gentle climbs and descents through rolling hills and valleys. It's an easy walk, even after rain, as the paved surface minimizes mud.

What can I see along the route?

Hikers can expect expansive meadows, pastoral valleys, and views of the surrounding rolling hills, including Lone Tree and Horse Valleys. Some sections offer views towards the east side of Mt. Diablo. The trail is also known for its local folklore, with sites linked to urban legends such as the 'Gates of Hell', a dilapidated hospital structure, an antiquated railroad track tunnel, and a weathered slaughterhouse.

Does the trail intersect other well-known paths?

Yes, the route also passes through sections of the Star Mine Trail, Sand-creek-Road, Sand Creek Road Ext., and Sand Creek Roaad.

Is the Empire Mine Road Trail dog-friendly?

Dogs are generally permitted on trails within the Black Diamond Mines Regional Preserve, but they must be kept on a leash. Always check the latest regulations on the East Bay Regional Park District's website before your visit.

What is the best time of year to hike this trail?

The trail is enjoyable year-round. Its paved surface makes it a good option even after rain, as it minimizes mud. Spring and fall offer pleasant temperatures and vibrant scenery, while winter can provide cooler, crisp air. Summer hikes are best done in the morning or late afternoon to avoid the midday heat.

Are there any permits or entrance fees required for this trail?

The Empire Mine Road Trail is located within the Black Diamond Mines Regional Preserve. While there is no general entrance fee for the preserve itself, there may be parking fees at certain trailheads. For detailed information on fees and any specific permits required for activities, please consult the official East Bay Regional Park District website: ca.gov.

Are there any specific regulations for hiking in Black Diamond Mines Regional Preserve?

As part of the Black Diamond Mines Regional Preserve, hikers should adhere to park rules, which typically include staying on marked trails, packing out all trash, and respecting wildlife. Always check the East Bay Regional Park District's official website for the most current regulations and safety guidelines before your visit: ca.gov.

What should I bring for a hike on this trail?

Given its 'Easy' difficulty and paved surface, essential items include comfortable walking shoes, water, sun protection (hat, sunscreen), and snacks. If you plan to explore the area's folklore, consider bringing a flashlight for any darker sections or structures, though always prioritize safety and respect private property.

Are there any hidden gems or local secrets along the Empire Mine Road Trail?

Beyond the noted historical and folklore sites like the 'Gates of Hell' and the rumored insane asylum, the trail's unique characteristic as a paved road closed to vehicles makes it an excellent choice for an easy, mud-free walk even after rain. This allows for comfortable exploration of the expansive meadows and rolling hills without worrying about difficult terrain.

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Mount Diablo via Summit Trail

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