U.S. Post Office, Grand Junction, Colorado (early location) 39.066595 -108.566091 4th Street and Colorado Avenue Grand Junction Mesa Colorado 81501 USA https://www.google.com/maps/place/39%C2%B003'59.7%22N+108%C2%B033'57.9%22W/@39.0665991,-108.5682797,17z/data=!3m1!4b1!4m14!1m7!3 Google Maps U.S. Post Office The post office's early location was in the alley between Main Street and Colorado Avenue on 4th Street yes yes