About 1 1/2 hours. rifle is about 30+ miles west of the I70/rte 82 exit for Aspen then you have another 50 miles to go from there.
The shortest driving distance is 159 miles.
It depends on your route, but the approximate driving distance (using major roadways) is 155 miles.
It is 204 miles according to Google Maps.
MapQuest estimates the driving time as 3 hours and 39 minutes.
It is 198.63 miles.