Beaches are sandy, gravelly, or cobbly shores washed and rewashed by waves. The areas may be partly covered with water during high tides or storms. Blown-out land consists of areas from which all or most of the soil material has been removed by extreme wind erosion. The areas are generally shallow depressions that have flat or irregular floors. Areas covered by water most of the year are mapped as Water.
Some areas have a few hummocks or small dunes.
Cinder land is composed of loose cinders and other scoriaceous magmatic ejecta. Water-holding capacity is very low, and trafficability is poor. Cirque land consists of areas of rock and rubble in characteristically cirque shape. The shape is caused by glacial erosion. Dumps are areas of smoothed or uneven accumulations or piles of waste rock and general refuse.