Text printed on reverse of stereocard:

"BOTTOMLESS PIT" AND "BRIDGE OF SIGNS."
Are on the main route to "Echo River" and a mile and a half from the entrance. The pit is of an immense depth and over it is thrown a substantial wooden bridge, across which visitors pass in the long route and towards "Pensacola Avenue." The pit presents a sight of awful sublimity when its steep sides are lighted up by the guide.