Above--1913 view of the Natural Entrance
Above--1924 view of the Natural Entrance. Vernon Bailey, member of
the Willis T. Lee expedition, catching bats for scientific experiments.
Above--Natural Entrance Stairs, circa 1925. Stairs funded by
the Carlsbad Chamber of Commerce, a group interested
in providing easier access into the caverns for visitors Prior
to the stairs, people wishing to enter the caverns, rode a guano
bucket on a 170' descent into the caverns.