The purpose of this thesis is to divide the state of Ohio into agricultural regions, and, so delimited, to describe and interpret these regions in a geographic manner. The basis of division is the use of the land for varying agricultural purposes. These variables are expressed my means of isopleth maps showing acreage percentages of land use. Factors of the natural environment, such as soil, bedrock, climate, topography, and drainage, aid in the interpretation of these regions
