shape, configuration, conformation, contour, form - any spatial attributes (especially as defined by outline); "he could barely make out their shapes through the smoke"

geographics, geography - study of the earth's surface; includes people's responses to topography and climate and soil and vegetation

topology - topographic study of a given place (especially the history of place as indicated by its topography); "Greenland's topology has been shaped by the glaciers of the ice age"