underarockphoto:
Aragonite frostwork (calcium carbonate, CaCO3), Ecstasy Avenue, Hellhole System, West Virginia
underarockphoto:
Gyspum flowers (calcium sulfate hydrate, CaSO4•n*H2O), Ecstasy Avenue, Hellhole System, West Virginia
underarockphoto:
Aragonite frostwork (calcium carbonate, CaCO3), Ecstasy Avenue, Hellhole System, West Virginia
underarockphoto:
Aragonite frostwork (calcium carbonate, CaCO3), Ecstasy Avenue, Hellhole System, West Virginia
underarockphoto:
Aragonite frostwork (calcium carbonate, CaCO3), Ecstasy Avenue, Hellhole System, West Virginia
underarockphoto:
Nathan Roser, Ecstasy Avenue, Hellhole System, West Virginia
underarockphoto:
Mary Hicks, Ecstasy Avenue, Hellhole System, West Virginia
underarockphoto:
Nathan Roser, Ecstasy Avenue, Hellhole System, West Virginia
underarockphoto:
Hope Brooks, Philosopher Dome, Hellhole System, Pendelton County, West Virginia
underarockphoto:
Hope Brooks, Philosopher Dome, Hellhole System, Pendelton County, West Virginia
underarockphoto:
Hope Brooks, Philosopher Dome, Hellhole System, Pendelton County, West Virginia
underarockphoto:
Nathan Roser, Rainforest Dome, The Rainforest, Hellhole System, Pendelton County, West Virginia
underarockphoto:
The Rainforest, Hellhole System, Pendelton County, West Virginia
underarockphoto:
Hope Brooks, The Rainforest, Hellhole System, Pendelton County, West Virginia
underarockphoto:
The Rainforest, Hellhole System, Pendelton County, West Virginia
underarockphoto:
The Rainforest, Hellhole System, Pendelton County, West Virginia
underarockphoto:
The Rainforest, Hellhole System, Pendelton County, West Virginia
underarockphoto:
Hope Brooks, The Rainforest, Hellhole System, Pendelton County, West Virginia
underarockphoto:
Hope Brooks, Perserverance Hall, Hellhole System, Pendelton County, West Virginia
underarockphoto:
Cindy Barton, Historic Entrance, Northern Hellhole, Hellhole System, Germany Valley, Pendelton County, West Virginia.
underarockphoto:
Cindy Barton, Historic Entrance, Northern Hellhole, Hellhole System, Germany Valley, Pendelton County, West Virginia.
underarockphoto:
Hope Brooks, High water line and data cable near Laundry Chute, Northern Hellhole, Hellhole System, Germany Valley, Pendelton County, West Virginia.
underarockphoto:
Cindy Barton, Laundry Chute Climbup, Northern Hellhole, Hellhole System, Germany Valley, Pendelton County, West Virginia.
underarockphoto:
Aaron Clair, Laundry Chute Climbup, Northern Hellhole, Hellhole System, Germany Valley, Pendelton County, West Virginia.
underarockphoto:
Aaron Clair, Laundry Chute Climbup, Northern Hellhole, Hellhole System, Germany Valley, Pendelton County, West Virginia.
underarockphoto:
Aaron Clair, Laundry Chute Climbup, Northern Hellhole, Hellhole System, Germany Valley, Pendelton County, West Virginia.
underarockphoto:
Aron Schmid and Aaron Clair, Laundry Chute Climbup, Northern Hellhole, Hellhole System, Germany Valley, Pendelton County, West Virginia.
underarockphoto:
Hope Brooks, Historic Entrance, Northern Hellhole, Hellhole System, Germany Valley, Pendelton County, West Virginia.
underarockphoto:
Ryan Maurer and Hope Brooks, Historic Entrance, Northern Hellhole, Hellhole System, Germany Valley, Pendelton County, West Virginia.
underarockphoto:
Cindy Barton, Historic Entrance, Northern Hellhole, Hellhole System, Germany Valley, Pendelton County, West Virginia.
