We just returned from a family vacation that included a walking tour through the California Caverns in Mountain Ranch. For the rest of the week we pondered the question "What is the difference between a cave and a cavern?" As is typical in my family, eve
"The process of forming caves in soluble rock is very slow.
"On August 13, 1878, one of nature's most spectacular creations was uncovered: Luray Caverns.
