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Natural Bridge Caverns

Largest commercial cavern in Texas.

Name:Natural Bridge Caverns
Name original:Natural Bridge Caverns
State / Region:Texas
Length:3535 m
Depth:70 m
Elevation of entrance:307 m
Number of visitors:0 / per year
Temperature:18.00 - 21.00 °C
Length of show path:530 m
Duration of visit:75 min
Address:26495 Natural Bridge Caverns Road, Natural Bridge Caverns
Town / City:San Antonio, Texas 78266
Phone:+1 (210) 651-6101
Fax:+1 (210) 651-6144

Basic info

Natural Bridge entranceNatural Bridge Caverns

Natural Bridge Caverns are the largest known commercial caverns in the state of Texas. The caverns' name is derived from the 20-m natural limestone bridge spanning the main entrance to the cavern. This "natural bridge" was the result of collapse in and around the entrance area over a period of time extending back some 10,000 years. The most recent collapse phase ended around 5,000 years ago.

The caverns were discovered on March 27, 1960 by Orion Knox, Jr., Preston Knodell, Al Brandt and Joe Cantu. The four men were students at St. Mary's University in nearby San Antonio. Over a series of visits during the early part of 1960, the explorers found an increasingly complex series of passages. Then in March of 1960, the main group credited with discovery found a narrow crawlspace which led them into two miles of previously unknown passage. This section of the cavern became known as the "Discovery Passages" and includes some of the largest underground chambers in Texas.

Castle of the White GiantsDevelopment of the cavern started in 1963 and continued up until opening day, July 3rd of 1964. Orion Knox temporarilly suspended his college studies to assist in development along with Jack Burch and the Wuest family. During excavation of the entrance tunnel, a number of artifacts were unearthed. Many of these arrowheads and spearpoints dated back between 5,000 to 10,000 years. Other paleontological remains were found, most notably an 8,000 year old jawbone and femur of a species of black bear which had since gone extinct in the area.

In 1968, speculation on a southern extent to the Discovery Passages was confirmed when test drilling indicated the presence of a large void some 7 meters below the surface. An area photographer sent a camera down the shaft and photographs revealed a large chamber filled with speleothems. The original shaft was enlarged and three men were sent into the ground. They discovered a large breakdown chamber and numerous formations. The first three men to enter this room were Jack Burch, Reggie Wuest, and Myles Kuykendall. By combining the first two letters of each man's name, they arrived at JAREMY, and thus this newly discovered room was called the Jaremey Room.

Further investigation near the bottom of the Jaremy Room revealed the possibility of additional passages beyond a pile of rocks and boulders. Drillers were once again brought out to the property and another exploratory shaft was sunk into the ground. This shaft also penetrated a large void and led to the exploration of another extensive section of cavern known as the Hidden Passages.




04. July 2018

Kungur Ice Cave - An invitation

"Pearl" of Russia. The current 2018 became significant for Russia. Holding the FIFA World Cup positively influenced economy of many regions of our country. Eleven cities of the Russian Federation accepting athletes and fans from around the world. Majority of them want not only to visit football matches, but also to get acquainted with nearby sights. Doesn't stand aside, the mislaid in Perm Krai, small and cosy city Kungur and the well-known Kungur Ice cave. Located in 300 km from Yekaterinburg, the city Kungur joined the cities-participants of the World Cup. From it tourists go to the Ice cave, having brought so various geography in visits statistics. It is possible indefinitely to list the countries residents which visited for these days the kingdom of eternal winter: Mexico, Peru, Australia, Spain, Lebanon, Brazil, China, USA, India, Denmark, Netherlands, Portugal, France … Foreign tourists and citizens of Russia, having visited the Kungur ice cave, often can't express that delight which covers them after the excursion on the fantastic underground world. What is surprising and unique in the Kungur Ice cave? In what it is one and only? First, in variety of forms of ice which are presented in the cave in more than 100 kinds. Secondly, an availability of long-term ices, which age is several hundreds of years, in spite of the fact that the cave is on an insignificant elevation mark. Thirdly, the cave length, it takes the fifth place on extent among caves of a plaster karst. Fourthly, there are several long and volume grottoes, that isn't characteristic of plaster caves. Fifthly, exotic contrast, during the summer period, from a heat in + 30 degrees outside to the subzero temperature of underground halls. This list of factors which characterize fantastic space can be listed infinitely, but as the popular Russian wisdom says "A picture is worth a thousand words". Welcome to the Kungur Ice cave!!! Ekaterina Noskova

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Cave Prehistory Resources

blogger: Darricau Joëlle
Dear Cave Prehistory fans, if you are interested in cave prehistory literature, feel free to search under this link: http://www.ifrao.com/robert-g-bednarik/r-g-bednarik-library/

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