California

Boyden Cavern Please be aware that to get to Boyden Cavern, you must drive into Sequoia National Park where the National Park Service charges each vehicle $20. This fee is not associated with Boyden Cavern. You will still have to pay an admission price at the cavern. Boyden Cavern lies beneath the massive 2,000 foot high marble walls of the famous Kings Gates. It is a magnificent cavern with many varieties of natural speleothems, including rare "shield" formations. Visitors are delighted to find that spectacular beauty above ground is complimented by natural beauty underground. THE SLIDE SHOW. Boyden Cavern is located in the deepest canyon in the United States, the spectacular 8000 feet deep Kings River Canyon of Sequoia National Monument and lies beneath the massive 2,000 foot high marble walls of the famous Kings Gates.

Black Chasm Cavern was designated a National Natural Landmark by the National Park Service in 1976 after being recommended by local members of the National Speleological Society, and as such is considered a "nationally significant natural area.” They feature gemstone mining and gold panning. Black Chasm Cavern was named a National Natural Landmark in 1976 by the National Park Service. It opened as California's newest show cave in 2001 for guided walking tours which culminate in a visit to the Landmark Room where the cave's trademark helictites are located. Twisting, turning and looping out of the walls, these usually rare formations have developed in spectacular profusion. The Colossal Room is traversed across a bridge suspended 70 feet above lake made brilliant blue by naturally occurring calcium bicarbonate. Photo Gallery. Click on the tiny photo and start the 3 photos. More Photos. Webshot Photos

We also know that California Cavern was the very first cave in the state to be opened to the public for guided tours in 1850. In the early days, the cave was known as "Mammoth Cave." The original tours, though impressive, were shorter than they are today, since more of the cave system has been discovered over the years. Click on the picture in this paragraph to go to our interactive map which compares the original historic trail to the current Trail of Lights. Cavern Tours It is a State Historical Monument.

Step back in time as you explore the historic Gold Cliff Mine located in the heart of the Mother Lode. The “Gold Cliff Adventure Trip” is a truly unique experience, combining challenging exploration with Gold Rush era history and folklore. History and info.

Moaning Cavern and Black Chasm Cavern This is a page written by folks that went for a tour. Great photos and comparisons. Zip Lines at Moaning Cavern Adventure Park. Wow. But it's not cheap.

Crystal Cave ...explore the underground beauty of Sequoia National Park! Walk by scenic waterfalls on the half-mile trail to Crystal Cave. Beautiful stalactites and curtains, impressively large rooms, and ornate marble polished naturally by a subterranean stream make a tour of Crystal Cave an unforgettable experience. Find special instructions to purchase tickets. This page has one photo and no history. Photo Gallery. The Wikipedia page has more photos including one of the entrance and describes Crystal Cave as a marble cave.

Lake Shasta Caverns this page has one photo and no history. History Explore the mystery and beauty of Shasta Caverns and article in the SFGate. Interesting. Webshots Photos

Subway Cave This is a lava flow tube and cavern. Learn how it was formed. Subway Cave is the largest accessible tube in the flow. This is part of the Lassen National Forest. Another page with one photo and how the cave came to be. Virtual Guidebooks, with lots of panoramic views. Lots to follow and see.

Sunny Jim's Cave (a sea cave) or The Cave Store. Be sure to take the Tour and read the history. I couldn't get the La Jolla Links to open. Lots of beautiful photos. See how the cave came to have an water entrance and an entrance from land.

"I DROP to my belly in the grit and mud, and slither beneath a fanged curtain of marble into the Dragon's Teeth Room. The small chamber lies deep underground in a Sierran canyon east of Fresno, California." See Lilburn, the longest known cave in California. A lot of wild caves. Excellent reading.

Natural Arches and Bridges: Koford Arch is a small but unusual arch. Hot Creek Valley Arch is a small but nicely formed natural arch. Death Valley Natural Bridge in Death Valley National Monument. Do you see the person standing below the arch? Strong Arm Arch in the condor sanctuary. It only has a span of 6 feet.