Long dead Native American?
Hello,. .This picture was taken last summer at The natural Bridge Caverns in San Antonio, TX. I took this and several other pictures in the caverns, and this is the only one that showed something like this. The tour guide was telling us that Native Americans used these caves as hideouts long ago. My sister also took pictures with her camera and nothing like this showed up. What do you all think. It's probably nothing, but it has been baffling us since the picture was taken. . .Thanks