Actually Leo is a place, it’s a small town in rural Ohio.  It is also the name given one of the petroglyph creatures at the neighboring historical site. 

It always amazes me when we manage to find and preserve these works by early man.  This one exposed rock in the middle of farmland has 30 some identified carvings made by ancient Indians over 1000 years ago.  It is a bit of a mystery as to what many of them actually depict but its pretty cool that they still survive.