This image shows a tourist path through Stark Caverns, featuring the narrowed ceiling described as the Appian Arch. Presumably this is in reference to Roman arches along the Appian Way, an ancient Roman road.
There is no description on the back of this photo card. The woman in back is a common feature intended to give a sense of scale to an otherwise difficult to interpret scene. The path is obviously prepared and maintained for tourists.
This card likely dates from the 1940s.