The difficulties associated with improving forest management practices on land held by farmers and other small landowners have been well documented. In North Carolina roughly four-fifths of all forest area is to be found in such holdings. To evaluate alternative strategies for improving land management, it is important to have information concerning the rates of change in land use on existing units. Aerial photographs provide a valuable source of this information, especially when flights have been made over an area at regular intervals extending back over several decades. In general, such regularity of aerial photo flights does exist for the continental United States. This article describes the use of such photographic data to construct land-use transition matrices.