dune-covered bed
41Apollo 15, Lunar surface — Apollo 15 Commander David Scott and Lunar Module Pilot James Irwin spent three days on the Moon and a total of 18½ hours outside the spacecraft on lunar extra vehicular activity. The mission was the first not to land in a lunar mare, instead… …
42Pinhook Bog — Indiana’s only true bog is a special geologic feature of this region which preserves a large variety of plants with extraordinary adaptations for survival. See insect eating plants and tamarack trees; walk on a boardwalk that is placed upon a… …
43Long Range Desert Group — The Long Range Desert Group (LRDG) was a British Army unit during World War II. The unit was founded in Egypt, following the Italian declaration of war in June 1940, by Major Ralph A. Bagnold with the assistance of Captains Patrick Clayton and… …
44Drainage basin — Example of a drainage basin. The dashed line is the main water divide of the hydrographic basin A drainage basin is an extent or an area of land where surface water from rain and melting snow or ice converges to a single point, usually the exit… …
45White Sands National Monument — Infobox protected area name = White Sands National Monument iucn category = III caption = locator x = 90 locator y = 120 location = Otero County Dona Ana County, New Mexico, USA nearest city = Alamogordo, NM lat degrees = 32 lat minutes = 46 lat… …
46At Land — Infobox Film name = At Land image size = caption = director = Maya Deren producer = writer = Maya Deren narrator = starring = Maya Deren Alexander Hammid John Cage Parker Tyler music = cinematography = Hella Heyman Alexander Hammid editing =… …
47Karakum Desert — or Kara Kum Desert Desert area, Central Asia. Located in Turkmenistan, it is bounded to the east by the Amu Darya valley. It can be divided into three major regions: the elevated and wind eroded Trans Unguz in the north, the low lying central… …
48Triassic Period — Interval of geologic time, с 248–206 million years ago, that marks the beginning of the Mesozoic Era. Many new vertebrates emerged during the Triassic, heralding the major changes that were to occur in both terrestrial and marine life forms… …
49Braid bar — Braid Bars, or mid channel bars, are landforms in a river that begin to form when the discharge is low and the river is forced to take the route of less resistance by means of flowing in locations of lowest elevation. Over time, the river begins… …
50North Warren RSPB reserve — Coordinates: 52°10′05″N 01°36′13″E / 52.16806°N 1.60361°E / 52.16806; 1.60361 …
