 Ephrata then developed as a trade and service center for cattle and sheep ranches in the area until the construction of the Columbia Basin Reclamation Project.In 1939, one of the state's longest runways was built at Ephrata Municipal Airport and served the U.S. Army Air Corps until 1945, when the field was turned into a commercial airport.The airport and hangars were used in Steven Spielberg's 1989 film "Always," the final movie to feature Audrey Hepburn.