After lunch and on our way home, and on a whim, we followed road signs to the Mercer Caverns. It turned out to be pretty cool!
The caverns were discovered by happenstance on Sept 1st, 1885 when a gold prospector named Walter J. Mercer sat to rest from the heat under a bay tree near a limestone rock. He noticed grass moving near a hole in the ground and came to discover the caverns shortly thereafter. The next day Mercer purchased the land for a five dollar gold piece and started public tours that went down to the depth of 161 feet, on September 12th.
See the formation behind me that looks like a thumb? It's called "Simons Thumb." Named after the children's game, Simon Says. This time Simon says, "Thumbs up!"

Below Left: This type of formation is called a drapery. It's thin and hangs like a drape. There are a set of draperies in the Caverns that Mercer liked to play as if they were a xylophone. However, he accidentally broke one, realizing that these formations are entirely more fragile than he had imagined.
Below Right: Speleothems. "Formed by the precipitation of water, the majority of cave decorations in the Caverns are Speleothems. The term is derived from the Greek
speleos for caves and
thema meaning deposit."
Although the Mercer Caverns still remain on private property today, the Caverns themselves are federally protected. The public is not allowed to touch anything. To do so would mean a $1,000 fine. But picture taking is good enough for me! There were some very interesting shapes down there.

Below: "Aragonite is a very rare and unusual frost-like white crystal which grows out from the walls and hangs from the ceilings in large delicate sprays. The Aragonite formations found at Mercer Caverns are some of the largest arrays found anywhere in the world. In 1900 a display of the rare Aragonite Flos Ferri was awarded the grand prize at the Paris World's Fair." Below is a side view of the caverns. See the tree? That's the entrance. The caves are like hallways in many areas, allowing the public to closely view some of the formations. The tour is quite fun as are some of the formations. Including some that look like straws, meat, poultry, animals, skull etc.

And here I am standing at the entrance which is right under that bay tree.
(If you want to visit the Mercer Caverns they are in Calaveras county, about 5 miles from Angels Camp.) Want to know more or see more pictures?
Click here.