Abstract: A method is provided for producing a foldable map of a region. First, an elongated piece of zig-zag folded material is provided having a plurality of spaced folds extending transversely of the length of the piece of material to define sheets between adjacent folds. This zig-zag material has a map display area having a total length to width ratio of a certain value. Next, a reference map of the region is divided into a plurality of rectangular strips of constant width. Each of the strips has a length which corresponds to the portion of the region within the associated strip, so that the ratio of the total length of the strips to the constant width is minimally smaller than the certain value. Then, the strips are reproduced on the piece of folded material so that particular strips appear on a maximum number of adjacent sheets.