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Bronson Canyon is located in the southwest section of Griffith Park near the north end of Canyon Drive, which is an extension of Bronson Avenue. In 1903, the Union Rock Company founded a quarry, originally named Brush Canyon, for excavation of crushed rock used in the construction of city streets–carried out of the quarry by electric train on the Brush Canyon Line. [1]
In 2004, an international caving expedition led by the U.S. Deep Caving Team discovered a new cave they named J2. The entrance of J2 located 5 kilometres (3.1 miles) northeast of the Cheve entrance. J2 appears to head in the direction of Cheve Cave, with a predicted intersection beyond the tunnel collapse that stopped the team in 2003.
Both peoples used the caves for ceremonial purposes. [4] The original name of the caves was “Salachi.” The current name, “Cacahuamilpa,” comes from a location near the cave entrance and means “peanut field.” [6] After the Conquest, the existence of the caves was kept hidden from the Spaniards by the indigenous peoples. [2]
Sistema Huautla is a cave system in the Sierra Mazateca mountains of the southern Mexican state of Oaxaca. As of May 2024 [update] it is the deepest cave system in the Western Hemisphere, 1,560 metres (5,120 ft) from the highest entrance to the lowest reached point in the cave system, with over 62 miles of mapped passageways.
In addition to Ballymaglancy Cave, the Ballymaglancy Resurgence cave has also been described. [16] While the entrance to Ballymaglancy Resurgence cave is in Galway, much of the cave is located under County Mayo. Ballynaglancy resurgence cave is 417m in length (with 50m unsurveyed as of 2015), and is 5 m in height. This site is also prone to ...
Tham Luang Nang Non (Thai: ถ้ำหลวงนางนอน, lit. 'Great Cave of the Sleeping Lady', RTGS: Tham Luang Nang Non, pronounced [tʰâm lǔaŋ nāːŋ nɔ̄ːn]) Also known as Tham Luang, and Tham Yai is a karstic cave system in the Tham Luang–Khun Nam Nang Non Forest Park, near the village of Pong Pha, in northern Thailand. [2]
The cave mouth itself is located “at the end of a ravine." [1] This accessway also includes two mounds which form a “gateway” to the entrance of the cave. [1] Archaeologists note that while Naj Tunich cave was difficult to reach, the Maya altered the cave significantly through the use of architectural modifications. [11]
Inside the caverns. Howe Caverns is a solutional cave formed by the dissolution of limestone rock. [2] The cave, like many on the Helderberg Plateau, such as Secret Caverns, which is also operated as a show cave, and Tory Cave, is composed of thickly bedded Lower Devonian aged Coeymans Limestone and thinly bedded Upper Silurian aged Manlius Limestone, both part of the Helderberg Group.