Does anyone have any experience photographing within and around the cave of the mounds near Madison? I am planning to visit and am wondering if it would be worthwhile taking a 4x5. Is there a possibility of seeing the caves apart from the hourly guided tours? I couldn't find any information on their site, but if they are only going to herd you around in groups, then there's no point trying to do any photography in peace. How about photography in the surrounding areas?

Any first hand experience and advice would be welcome.