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How long is the Black Chasm Cavern tour?

How long is the Black Chasm Cavern tour?

50-minute
The 50-minute guided walking tour departs from the Black Chasm Visitor Center and descends into the cave approximately 100 feet below the surface. A tour consists of no more than 25 people due to space constraints inside the cave.

Is Black Chasm Cavern still forming?

Black Chasm Cavern was designated a National Natural Landmark in 1986 by the National Park Service, due in part to its incredible display of rare helictite formations. It has been open for public tours since 1998.

What type of cave is Black Chasm Cavern?

dissolution cave
Black Chasm Cavern is a dissolution cave, formed by carbonic acid eroding the subterranean bedrock. This eroded the limestone bedrock to form small to very large chambers. It is formed in what is considered to be part of the Calaveras Complex.

What is an underground chasm?

The Underground Chasm is a narrow corridor that splits lower Walt’s Rocks. The routes in the corridor are bolt protected, vertical to slightly overhanging, and ascend generally good, highly featured rock.

How much is the Black Chasm Cavern tour?

Tours are currently $18.50 per adult and they offer discounts for seniors and children. We began our tour on the back deck and made our way down the stairs to the entrance of the cave. Here, our tour guide spent about 10-15 minutes educating us on the history of the Cavern.

Where is the Black Chasm Cave in California?

Helictites in the Landmark Room, on a wall visible from the tourist trail. Black Chasm Cavern is a cave nestled in the hamlet of Volcano, located in Amador County, California . Black Chasm Cavern is a dissolution cave, formed by sulfuric acid resulting from Geo-thermal hydrogen sulfide reacting with down-moving oxygenated surface water.

What’s the temperature in the Black Chasm Cave?

Black Chasm is located just outside the town of Volcano at an elevation of 2250 feet. Summertime temperatures outside the cave reach over 100 degrees and in the winter time temperatures can be at or below freezing with up to a foot of snow possible. The cave itself, however, is always 58 degrees inside.

What to bring to the Black Chasm caverns?

The caverns are cool, both literally and figuratively. Bring a sweater if you easily get cold. I thought it was perfect, especially in this heat. The kids mined for interesting rocks and there was even picnic benches, if you want to bring lunch before the cave tour.