Caves are a natural underground space. It is enough for human to enter. It is generally situated in forest. Many caves have been developed “show caves” with lighting and passage ways which allows comfortable exploration for the people of all ages. Some caves are dangerous because in it wild animals are lived. There are hundreds of caves in the U.S alone. Now we discuss about top ten caves IN USA as are follows:
10: Ape caves:
It is lava tube. It is about 1,900 year ago. It is located in southwest Washington. Its length is 13,042 feet and 3975m. It explore nearby Gifford Pinchot national forests. Its temperature is 42 degree Fahrenheit year round. It will be opened for all tours to their visit in summer. It was discovered in 1947.
9: Carlsbad cavern:
It is located in southeast New Mexico. It is 30 miles long and 1,037 feet deep. Its temperature is 56 degree Fahrenheit year round. From early spring to October 1000 of bats exists the cavern for their nightly insect feast. It is the one of the world largest underground chambers.
8: Moaning cavern:
It is located in central California, east of San Francisco. Its temperature is 61 degree Fahrenheit year round. It will be opened for tours all year. It has no light and has stairs or walkways.
7: Sonora cavern:
It is located in southern Texas near Sonora, in Sutton County. Its temperature is 71 degree Fahrenheit year round. It will be opened all year for the tourists. Many of the mineral formulations found in the caverns of Sonora. The cave is active, with over 90% of the cave forming new crystals. The cavern of Sonora is opened to the public in 1960.
6: Meramec cavern:
Its location is in eastern Missouri on the Illinois border. Its temperatures are 60 Fahrenheit year round. It measures 70 feet high, 60 feet wide and 35 feet thick. It is the largest single cave formation in the world. It is used as a station by the Underground Railroad.
5: Luray cavern:
Its location is in northern Virginia, ten minutes off skyline drive. Temperature of this cavern is 54 degree Fahrenheit year round. It will be opened all year because engineer and organists work in it. Four million years, this cave grows one inch every 120 years.
4: Niagara cave:
It is one of the Midwest’s largest limestone caverns. Niagara cave’s ceiling reaches over a 100 feet high, with deep canyons and gorges below. It is located in southeast Minneola. Temperature of the cave is 48 degree Fahrenheit year round. It will be opened till May to September.
3: Polar caves:
It was formed about 50,000 year ago. It is the third continental glacier descended over new hemispheres, White Mountains. It includes a rock garden, nature trails, and petting zoo. It is located in central hemisphere. Its temperature varies with season. In summer, its temperature is 55 degree Fahrenheit. It will be opened through mid of October for the tourists.
2: Jewel cave:
It is 121 miles long. It is the third longest cave in the world and second longest cave in the U.S.A. it is located in southwest South Dakota, in the black hills. Temperature of it is 49 degree Fahrenheit year round. It is open all year for the tourists. Jewel cave is also an important winter residence for several spices of bats. The caverns of jewel cave sink to a depth of 112m and 1.9 km long.
1: Mammoth cave:
It is 350 miles long and 379 feet deep. It is the longest cave in the world. It is located in south-central Kentucky. Its temperature is 54 degree Fahrenheit year round. It will be opened all year. It is used as an underground railroad.