( &&&&&&&&&&013656.&&&&&0 13,656 km 2 ) State map highlighting Montezuma County Montrose County 085 Montrose 1883-02-11 Split from Gunnison County . Named for the town of Montrose , which in turn was probably named from the novel A Legend of Montrose , published in 1819 by Walter Scott . &&&&&&&&&&038559.&&&&&0 38,559 &&&&&&&&&&&05818.210000