Colombey-les-Belles Aerodrome - Distance Map showing the depot with distances to its sources of supply in the rear. Source: Series 1, Paris Headquarters and Supply Section, Volume 30 History of the 1st Air Depot at Colombey-led-Belles, Gorrell's History of the American Expeditionary Forces Air Service, 1917–1919, National Archives, Washington, D.C.