Black Diamond Mines Loop Trail

MODERATE 27 reviews

Black Diamond Mines Loop Trail is a 5.4 mile heavily trafficked loop trail located near Antioch, CA that features beautiful wild flowers and is rated as moderate. The trail offers a number of activity options and is accessible year-round. Dogs and horses are also able to use this trail.

5.4 miles 1551 feet Loop

dog friendly

kid friendly

birding

hiking

mountain biking

nature trips

trail running

walking

horseback riding

cave

views

wild flowers

wildlife

rocky

scramble

The hills of Black Diamond Mines Regional Preserve east of Concord, California, have been returned to their natural state, making them ideal for hiking, birdwatching and other outdoor adventures. It wasn't always like this: In the 1800s, a coal economy ruled the region. When the coal ran out, the miners moved on, leaving tombstones where towns once stood. Mining resumed years later: this time they dug sand for a local glassmaker. Tours of the old silica sand mines are a popular fixture of Black Diamond Mines. This route starts out in the parking lot on the old Somersville town site, passing the Rose Hill Cemetery and moving on to Nortonville, another town site lost to time.

hiking
21 days ago

Good trail, did it with 10lb packs to give a couple people a "backpacking simulation". Good day!

hiking
1 month ago

The trail goes through 3 different old mining sites and the Rose Hill Cemetery. It as some pretty good hills and is on the upper side of moderate. I did it in late march so there were some wildflowers starting to bloom. Very good winter and spring hike and probably a 3 1/2 stars for me.

1 month ago

Beautiful golden grassy area, loves the scenery. Far away from everything!

hiking
2 months ago

Good trail that isn't that steep but hot. Best done any time but in the summer heat.

hiking
2 months ago

I started at the Nortonville Trail, continued onto the Black Diamond Trail, I followed the Black Diamond Trail and completed the loop. Total distance was 5.4 miles, 1,227 feet elevation. Most trails were wide and easy graded except the last couple miles were single track. I enjoyed reading all of signs that showing the historical local coal mining. I also enjoyed views of the surrounding area.

3 months ago

Great hike.

hiking
3 months ago

Loved the history of the mines, their cool temperature was a welcome relief from hot weather. Walking on sand trails was unique for a non-beach setting. Needed more trail markers and remember to have cash for parking.

hiking
3 months ago

Nice hike with beautiful views once you reach the top. The first half of the hike, to about the 2.5 mile mark, is steep but once halfway it's mostly downhill from there. Go early in the morning, especially in the summer months, to avoid the heat and bring plenty of water.

4 months ago

Not much shade in some spots. There are some really tough increments to start and finish.

Overall... Fantastic views. Clean. Clear. Can't wait to go again.

5 months ago

i loved this trail, quite steep for a bit but worth it for the views.

6 months ago

Beautiful area

hiking
7 months ago

It is a very well kept and has vast open space. It ranges from easy to moderate but has great views no matter which direction you are traveling. We spotted some wild turkeys and near the beginning of the loop there are cows grazing. It's great place to get out doors and get some exercise and bring the family too! As well bring a picnic if you prefer, they have a picnic area too!

hiking
7 months ago

7 months ago

8 months ago

Excellent, for an early morning hike. Lots for nice vistas and open space.

hiking
8 months ago

Nice day and beautiful place.

hiking
9 months ago

Great place to go for a hike with many options for length of trails. Dog friendly! Which is a huge plus for me. I took my kids and dogs on a 6 mile hike. It was beautiful!

hiking
1 year ago

Beautiful views of the rolling hills and valleys.

1 year ago

mountain biking
1 year ago

I grew up in Antioch, and have rode and hiked Black Diamond many, many times. Springtime is best, with all of the wildflowers in bloom. The scenery coupled with all of the history is absolutely fantastic.