A cave network with large passages and rooms — many more than 50-feet wide and some containing ancient animal skeletons — has been discovered within the Sequoia and Kings Canyon National Parks in central California, the National Park System announced.

Its still unknown how far the network goes, but the find is “so significant,” the agency said in a statement Monday, that park staff believe that if the cave were not already within the National Park System it would certainly qualify.

[Read](http://www.msnbc.msn.com/id/15012809/ “Read the Story”) (MSNBC)

*This certainly blows away [Luray Caverns](http://www.luraycaverns.com).*