How did Kelley’s Island become Kelley’s Island exactly? These ancient grooves are a big clue. The Glacial Grooves Geological Preserves on the island shows off deep grooves that a glacier scoured into limestone about 18,000 years ago, plus ancient marine fossils. The fossils themselves are about 350 to 400 million years old. Haven’t been? Make the trip.
Photos courtesy Wikipedia & Glacial Grooves Geological Preserves
