Cobalion: Route 13
Virizion: Route 11
Terrakion: Route 22
Reshiram or Zekrom: Dragonspiral Tower
Kyurem: Giant Chasm
Latios or Latias: Dreamyard
Uxie: Nacrene Museum
Azelf: Route 23
Mesprit: Celestial Tower
Regirock, Regice, Registeel: Underground Ruins
Regigigas: Twist Mountain
Cresselia: Marvelous Bridge
Heatran: Reversal Mountain
You should visit this website for the rest of the info because there is too much to write:
http://www.serebii.net/black2white2/legendary.shtml
Hope this helps
