35. Ohio
Glacial Grooves Geological Preserve: To access the Glacial Grooves Geological Preserve you must take first take the Kelleys Island Ferry. The grooves are about 400 feet long, 35 feet wide and up to 10 feet deep.
Glacial Grooves Geological Preserve: To access the Glacial Grooves Geological Preserve you must take first take the Kelleys Island Ferry. The grooves are about 400 feet long, 35 feet wide and up to 10 feet deep.