Wookey Hole Caves Age, possibly around 250-300 BC, while nearby Hyena Cave was occupied by Stone Age hunters. Badger Hole and Rhinoceros Hole are two dry caves on the slopes above the Wookey ravine near the Wookey Hole resurgence and contain in situ cave sediments laid down during the Ice Age. Just outside the cave the foundations of a 1st-century hut have been identified. These had been built on during the Roman era up to the end of the 4th century. In 1544 products of Roman lead working in the area were discovered. The lead mines across the Mendips have produced contamination of
Caves of Meghalaya partially explored, for a total length of caves explored. With an explored length of , Krem Liat Prah in Jaintia Hills is the longest cave in Meghalaya, as well as India, and is listed among the longest caves in the world. Krem Liat Prah contains a huge passage called the "Aircraft Hangar." Since the MAA was established in 1994, the explored caves account for only about 5% of the total underground passages in the state of Meghalaya. Limestone mining for the cement industry is a major threat to the Caves of Meghalaya, causing a major collapse of the Krem Mawmluh