Ben Tobin has questions about the Grand Canyon’s caves.
The University of Kentucky geologist started learning about caves as a young man, in part because his mother was a geologist, and a childhood fascination grew over time.
“Caves are a really special place in many ways,” Tobin said.
When he was in college, an internship in Arkansas doing cave tours got him hooked, and eventually his work brought him out West, to Grand Canyon National Park...