underarockphoto: gyspum flowers, Rapps Cave, Greenbrier County, West Virginia
underarockphoto: The Sinkhole, Tennessee
underarockphoto: Ryan Maurer, Flood event at Petite Falls, Laurel Caverns, Fayette County, Pennsylvania
underarockphoto: The Rainforest, Hellhole System, Pendelton County, West Virginia
underarockphoto: Helectites, Virgin Cave, Lincoln National Forest, New Mexico
underarockphoto: Snake Dancers, Virgin Cave, Lincoln National Forest, New Mexico
underarockphoto: Rimstone Falls Cave, Greenbrier County, West Virginia
underarockphoto: Rimstone Falls Cave, Greenbrier County, West Virginia
underarockphoto: Jacob Lieber and a Chandelier
underarockphoto: IMG_1892bsmall
underarockphoto: M Survey
underarockphoto: Hope Brooks, Falling Cave, Alabama
underarockphoto: Riannon Colton and Hope Brooks, Falling Cave, Alabama
underarockphoto: Hope Brooks, Natural Well, Alabama
underarockphoto: Hope Brooks, Jess Elliot Cave, Alabama
underarockphoto: Ryan Maurer, Upper Coronavirus Canyon,Grable Cave, Fayette County, PA
underarockphoto: Ryan Maurer, Alpena Cave, Randolph County, West Virginia.
underarockphoto: Ryan Maurer, Morrils Cave ("Worleys Cave"), Sullivan County, Tennessee
underarockphoto: Ben Schafler, Drop 2 ("Well of Silence", 108ft), Sinks of the Run Cave, West Virginia.
underarockphoto: Cindy Barton, Drop 1 ("Perseus Pit", 77ft), Sinks of the Run Cave, West Virginia.
underarockphoto: Ben Schafler, Drop 2, and the lake at Drop 2, Sinks of the Run Cave, West Virginia.
underarockphoto: Ryan Maurer and Hope Brooks, Historic Entrance, Northern Hellhole, Hellhole System, Germany Valley, Pendelton County, West Virginia.
underarockphoto: Water Crawls, Number 5, Higgenbothams Cave System, Frankford, Greenbrier County, WV
underarockphoto: Jacob Lieber, Green's Well, Maxwell Mountain, Jackson County, Alabama
underarockphoto: Hope Brooks in the Well of Silence
underarockphoto: Hope Brooks in Chiquita Pit
underarockphoto: Holly Nichols in Artemisia Pit
underarockphoto: Whispering Well, Paint Rock River Cave, Nat Mountain, Skyline Wilderness Management Area, Jackson County, Alabama
underarockphoto: Triple Wells