The heat of a summer’s day faded away with the noises of the outside world as I strode into this tunnel in time. I visited the Hazel-Atlas Sand Mines in the Black Diamond Regional Park, where they once gathered silicone to make ketchup bottles and also castings for the steel foundries. I was there to take photographs for a magazine.
Rails run along the floor for the carts that once carried the sand to daylight, while the sandstone ceilings show the marks of ancient water drops. Vast caverns and stopes open up, supported by thick timbers and patterned columns of sand, left in place to provide structure. The feel is of a different world and a different time. The signs on the walls are almost in another language—”Escapeway” has replaced “Exit.”
I visited these carved tunnels nearly an hundred years after they were dug, as the park they are now located in was renovating them to make them safe for visitors to tour through them. The photoshoot was in in preparation for the reopening of the mines to the public. (There are some areas however that are still shut off, where various universities are running experiments, or areas simply aren’t safe or are needed for storage or other reasons.) We had a behind the scenes tour, while the work was still going on.
All of the light down there is man made, with lights strung together through many of the tunnels (though some were almost without any lights other than those we carried with us). To photograph the mines I had to use a collaboration of a tripod and fill flash. Longer exposures on the tripod to maximize the available light, and the flash to fill in dark areas as needed. It was a fun and challenging experiment. When ever possible I relied solely upon the long exposures.
There was of course a lot of park to explore above ground also, complete with a graveyard of the workers that had helped create these mines, along with a coal mine that had been in the same location. There was also a huge variety of birds and other wildlife, including this coyote that I was able to photograph while yawning.
A very interesting place to visit, especially on a hot summers day, when the coolness underground can be a reprieve from the heat of the sun. It is a park that I highly recommend to others, as a slice of history that many of us never realize existed. Also, while there are stories in the papers and movies about mines, they are something many of us have never visited, and this is at least a partial look into that world.
The Black Diamond Sand Mines had two lives, first as a coal mine then as a sandstone mine.
By hand, with only picks, shovels, and carts for the most part, miners carved out this vast cavernous system.
There was a long stretch of time however between when the sand mines were operational (I believe they shut down in the 1920’s) and when the park was established and began to turn the mines into somewhere that could be toured. In the interim it was a place that teenagers would sneak of to and drink or have parties. There are several areas of the caves where the ceilings are stained with soot from people having fires. The park had to clean up bottles, cans and more to make it an inviting public place.
Thank you. It’s a fantastic place to explore for a taste of history
Fascinating tour. thank you
Thank you for the tour-I found it interesting particularly the patterns of scooped sand but might be too chicken in real life.
You’re welcome. Wait for a hot summers day to visit, and then the heat outside will drive you to seek the cool embrace of the tunnels, where you feel like you just stepped into a different time and a different season. Simple relief from the powerful heat might help you overcome that inner chicken.
The mines seem to be quite safe. They’ve withstood many a strong earthquake with no damage. UC Berkeley also has seismic monitoring stations set up inside, since all outside vibrations are so dampened with in.