Continental's route structure was virtually unchanged through most of the 70's. Service was concentrated at Los Angeles, Houston, and Denver. Newark wasn't even served until the early 80s. Continental's "Proud Bird with a Golden Tail" was replaced with the new campaign seen on the cover. At the time, the airline was very profitable and operated a efficient DC-10 and 727 fleet. From 1977-80, Continental and Western Airlines flirted on and off with merger.