| Date - Field | Mongolia - Terrain |
2008 January Terrain | vast semidesert and desert plains, grassy steppe, mountains in west and southwest; Gobi Desert in south-central |
2007 January Terrain | vast semidesert and desert plains, grassy steppe, mountains in west and southwest; Gobi Desert in south-central |
2006 January Terrain | vast semidesert and desert plains, grassy steppe, mountains in west and southwest; Gobi Desert in south-central |
2005 January Terrain | vast semidesert and desert plains, grassy steppe, mountains in west and southwest; Gobi Desert in south-central |
2004 January Terrain | vast semidesert and desert plains, grassy steppe, mountains in west and southwest; Gobi Desert in south-central |
2003 January Terrain | vast semidesert and desert plains, grassy steppe, mountains in west and southwest; Gobi Desert in south-central |
2002 January Terrain | vast semidesert and desert plains, grassy steppe, mountains in west and southwest; Gobi Desert in south-central |
2001 January Terrain | vast semidesert and desert plains, grassy steppe, mountains in west and southwest; Gobi Desert in south-central |
2000 January Terrain | vast semidesert and desert plains; mountains in west and southwest; Gobi Desert in southeast |