The 49th annual powwow at Montana State University Billings featured dancers in colorful regalia synchronizing their movements to the pounding beat of drums and Native songs on Saturday, keeping cherished native culture alive.  An estimated 400 dancers participated in the two-day powwow.  Jingle dancers wore metal cones on their dresses that chimed as they moved on the plastic-covered floor in the Alterowitz gymnasium.  The MSUB powwow is on the Montana college circuit.