In 1925, an American Jew named Isaac Segal Feller purchased a plot of 600 dunams on a hill above the springs. This land was called "Nachalat Yitzchak" or "Kiryat YaSaF" after its founder. During the 1936–1939 Arab revolt and 1948 Arab–Israeli War, it served as a base for Hagana training and military operations. Since 1994, there have been disputes over development of the site for residential or tourism purposes.