Related Clues:

• Gobi formations
• Sand hills
• Features of Mars and Earth
• Former Vegas hotel, with "The"
• Sand formations
• The ends of the earth
• Saharan hills
• Ridges of windblown sand
• Glacial masses
• Desert drifts
• Kara Kum features
• Mojave hills
• Polar opposites?
• Spots for buggies
• Cold headgear, perhaps?