Steamboat Springs was served by flights from both Chicago and Dallas / Ft. Worth.  Boeing 727 aircraft were used. Steamboat Springs is actually served by the Yampa Valley Regional Airport located in Hayden, Colorado some twenty-five miles west of the city.

This cover was carried on the December 20, 1986 inaugural American Airlines flight from the Dallas/Fort Worth, Texas Airport Mail Facility to Steamboat Springs, Colorado (where it was backstamped) and is listed in The American Air Mail Catalogue as AA-D271Wf.