Aerial photo of the preserve, prior to tree planting

Cave cleanup crew

The "Sullivan cavefish," a surface sculpin

Potholes near the Sullivan River

Cavers emerging from the "Backbreaker" passage

Tree planting crew (2001)

Dilapidated camper being removed (2000)

The first Under-Earth Day

Cave entrance before gate installation
(circa 1970)

Woodshed, campground and parking area

Satellite image, with boundaries