The US retains it's only MTB World Cup venue:
On the cross country side of racing, the UCI confirmed that the 2012 World Cup will return to Windham, New York. The venue has twice previously hosted the World Cup. In its first year in 2010, it was a triple, featuring four cross, downhill and cross country. In 2011, it hosted downhill and cross country, but not four cross. 2012 will feature the same two events. The area was recently devastated by rains and flooding from Hurricane Irene and efforts are underway to rebuild.
2012 UCI Mountain Bike World Cup Calendar
March 17-18: Cross country #1, Downhill #1 - Pietermaritzburg, South Africa
 April 14-15: Cross country #2, Eliminator #1 - Houffalize, Belgium 
May 12-13: Cross country #3, Eliminator #2, Nove Mesto Na Morave, Czech 
May 19-20: Cross country #4, Eliminator #3, La Bresse, France 
June 2-3: Downhill #2, Val di Sole, Italy 
June 9-10: Downhill #3, Fort William, Great Britain 
June 23-24: Cross country #5, Downhill #4, Mont-Sainte-Anne, Quebec Canada 
June 30-July 1: Cross country #6, Downhill #5, Windham, New York, United States 
July 28-29: Cross country #7, Downhill #6, Val d'Isere, France 
September 15-16: Downhill #7, Hafjell, Norway
Via CyclingNews