2
Olentangy Indian Caverns - Delaware, Ohio
1779 Home Rd, Olentangy Indian Caverns,
Delaware,
OH
History shows these caverns were used by the Wyandot Indians as recently as the early 1800's. The caves provided shelter from the elements and enemies. Many artifacts including arrowheads and other stone implements were f... waymarking.com
3
Central Ohio Grotto
6883 Cedar Brook Pl,
New Albany,
OH
Contact Jamie Thompson or Mark Swelstad. 4th Tuesday but locations may vary. nssio.org