Wed, 8 November 2006 Jewel Cave National Monument is located in the Black Hills of South Dakota, not far from Mount Rushmore. It is currently considered the second largest cave in the world (after Mammoth Cave in Kentucky), but only a small portion of it has actually been mapped, so it may be the largest cave system in the world. (Click Here for more information.) [OOPS! The original file I uploaded was saved at a rate of 24000Hz, instead of my usual 22050Hz. This probably caused problems for most listeners. sorry about that. I have uploaded a new file that is correct.] Comments[0] |

