It is 842.42 miles accoording to MapQuest.
It is an 841 mile drive according to MapQuest.
It is 665.30 miles according to MapQuest.
It is 821 miles according to Google Maps.
It is about 841 miles via I-25. A shorter route via US-160 will save 85 miles but adds an extra hour and a half to the driving time. The single advantage to that route is to visit the Four Corners area.
43.6 miles.
About 40 miles.
The driving distance from Tucson, Arizona to Phoenix, Arizona is 116 miles.
250 miles, going from the post office in rifle to the main post office in Colorado Springs.
252 miles
Denver, Colorado is about one hour in driving distance from northern Colorado Springs, CO
932 miles
It is 155 miles according to Google Maps.