The Greene Ville Treaty was signed with the Indians in 1795, and locating the dividing line between the United States in the Northwest Territory and Indian land became the task of General Rufus Putnam, Surveyor General of the United States, under whom the survey was made. Marking the treaty line was a great engineering feat, and the early surveyors west of the Alleghenies lived a strenuous life harassed by malaria, mosquitoes, the ague, and the savages. The treaty line passes through Cardington near this spot.