| Date - Field | Burkina Faso - Terrain |
2009 January Terrain | mostly flat to dissected, undulating plains; hills in west and southeast |
2008 January Terrain | mostly flat to dissected, undulating plains; hills in west and southeast |
2007 January Terrain | mostly flat to dissected, undulating plains; hills in west and southeast |
2006 January Terrain | mostly flat to dissected, undulating plains; hills in west and southeast |
2005 January Terrain | mostly flat to dissected, undulating plains; hills in west and southeast |
2004 January Terrain | mostly flat to dissected, undulating plains; hills in west and southeast |
2003 January Terrain | mostly flat to dissected, undulating plains; hills in west and southeast |
2002 January Terrain | mostly flat to dissected, undulating plains; hills in west and southeast |
2001 January Terrain | mostly flat to dissected, undulating plains; hills in west and southeast |
2000 January Terrain | mostly flat to dissected, undulating plains; hills in west and southeast |