41. Chagrin Falls Yale Public content 1908. 2011-12-12T21:34:39Z. 2022-03-29T20:40:23Z. Geological Survey (U.S.). U.S. Geological Survey. English. Public. Ohio.
42. Chardon Yale Public content 1906. 2011-12-12T21:34:39Z. 2022-03-29T20:40:23Z. Geological Survey (U.S.). U.S. Geological Survey. English. Public. Ohio.
43. Chesterhill Yale Public content 1906. 2011-12-12T21:34:40Z. 2022-03-29T20:40:23Z. Geological Survey (U.S.). U.S. Geological Survey. English. Public. Ohio.
44. Chillicothe Yale Public content 1908. 2011-12-12T21:34:40Z. 2022-03-29T20:40:23Z. Geological Survey (U.S.). U.S. Geological Survey. English. Public. Ohio.
45. Circleville Yale Public content 1914. 2011-12-12T21:34:40Z. 2022-03-29T20:40:23Z. Geological Survey (U.S.). U.S. Geological Survey. English. Public. Ohio.
46. Clarington, O.-W. Va. Yale Public content 1940. 2011-12-12T21:34:40Z. 2022-03-29T20:40:23Z. Geological Survey (U.S.). U.S. Geological Survey. English. Public. Ohio and West Virginia.
47. Cleveland Yale Public content 1903. 2011-12-12T21:34:40Z. 2022-03-29T20:40:23Z. Geological Survey (U.S.). U.S. Geological Survey. English. Public. Ohio.
48. Columbiana Yale Public content 1909. 2011-12-12T21:34:41Z. 2022-03-29T20:40:24Z. Geological Survey (U.S.). U.S. Geological Survey. English. Public. Ohio and Pennsylvania.
49. Columbus Grove Yale Public content 1908. 2011-12-12T21:34:41Z. 2022-03-29T20:40:24Z. Geological Survey (U.S.). U.S. Geological Survey. English. Public. Ohio.
50. Conesville Yale Public content 1910. 2011-12-12T21:34:41Z. 2022-03-29T20:40:24Z. Geological Survey (U.S.). U.S. Geological Survey. English. Public. Ohio.