Remarkable Ohio


Below is a complete listing of all Ohio Historical Markers. To find a detailed marker listing including text, photographs, and locations, click on a county below. Our listing is updated by the markers program as new markers are installed and older markers are reported damaged or missing.

6-46 Campbell Hill

Side A: Campbell Hill is named for Charles D. Campbell of Bellefontaine, who owned this land from 1898 to 1937. A marble stone marker atop the hill, set in 1900 by the U.S. Coast and Geodetic Survey, marks it as the highest point in Ohio at an elevation of 1549.09 feet. In 1951, the federal government established the 664th Aircraft Control and Warning (AC&W) Squadron here as part of the North American Air Defense Command (NORAD). Its military and civilian operators used sophisticated radar and computer equipment to locate and identify aircraft as friendly or suspicious, and relayed information to a central site in Battle Creek, Michigan. This Cold War site operated until 1969. It was converted to civilian use as a vocational education center in 1974.
Side B: Same
Sponsors: Ohio Bicentennial Commission The Longaberger Company Treaty Lands Chapter, Professional Land Surveyors of Ohio The Ohio Historical Society
Address: 2280 OH 540, 
Location: Located at the top of the hill on the Ohio Hi-Point Career Center campus
Latitude: 40.3702590
Longitude: -83.7201750