Montana
From Tardis Wiki, the free Doctor Who reference
Montana was a state in the United States of America. In 1804, Lucia Cailloux killed a herd of mammoths in the area which would one day become Montana. (PROSE: Grass)
In 2054, the Montana Republican Militia invaded Saskatoon and were stopped by the Doctor and Joseph Armitage Kortez. (PROSE: Alien Bodies)
The First Doctor taught the Mountain Mauler of Montana. (TV: "All Roads Lead to Rome", PROSE: Byzantium!)