Scope and Contents From the Collection: Corps of Engineers Aerial Photographs were made primarily to update water/land boundaries and related data on quadrangle charts. Not all areas of the state have been covered. These photographs were taken from 1958 to 1964. Computerized indexes are in three parts with arrangement by map name, date, and starting number of each sequence of frames. These photographs come from several repositories from the state, including University of Southwestern Louisiana (now University of...