Cirque land consists of areas of rock and rubble in characteristically cirque shape. The areas have been caused by glacial erosion. Dumps are areas of smoothed or uneven accumulations or piles of waste rock and general refuse. Dumps, mine consist of areas of waste rock from mines, quarries, and smelters. Some dumps with closely associated pits are mapped as Dumps-Pits complex.
Dune land consists of sand in ridges and intervening troughs that shift with the wind.
Glaciers are large masses of ice formed, at least in part, on land by the compaction and recrystallization of snow. A little earthy material may be on or in the ice. The areas resemble miniature badlands. Generally, gullies are so deep that extensive reshaping is necessary for most uses. Small areas can be shown by spot symbols.