In which state would you find the Mississippi River headwaters at Lake Itasca?

In which state would you find Chaco Canyon? In which state would you find Taos Pueblo? In which state would you find Antelope Canyon? In which state would you find Horseshoe Bend? In which state would you find Mount Washington? In which state would you find the Ben & Jerry's factory in Waterbury? In which state do the Boston Celtics play their home games? In which state do the Brooklyn Nets play their home games?