Topographic mapping from Mexico’s national survey agency, Instituto Nacional de Estadística, Geografía e Informática. The maps have contours at 20m intervals with relief shading & indicate various types of terrain & vegetation, e.g. dense vegetation, cultivated areas, swamps, sand dunes, salt pans, etc. UTM grid is at 10km intervals, with latitude & longitude shown by margin ticks at intervals of 5`. Map legend is in Spanish only. To see the other titles in this series please click on the series link.