The following is a list of regions on Mars given the name Terra (pl. Terrae). Most cover large, rugged areas, often including outflow channels, cratering, and "chaos terrain". They may be contrasted with the Planitia (e.g., Amazonis Planitia) and Mare (e.g., Mare Erythraeum), smoother regions of differing albedo. Interactive Mars map See also List of plains on Mars List of areas of chaos terrain on Mars References External links Mars features database, (MIT; 2000) Google Mars U.S. Government, Planetary names