Two years ago, in the April, 1947 issue of American Antiquity, appeared a series of papers concerned with the River Basin Survey archaeological program (Brew and others, 1947). As the published record of a symposium sponsored by the Committee for Recovery of Archaeological Remains, those papers set forth the objectives and plans for a major program of scientific salvage. This undertaking stems from the nation-wide Federal water-control developments, whereby hundreds of dams, reservoirs, irrigation facilities, and other works are contemplated. Inasmuch as these developments will necessarily involve large sections of many of our stream valleys, where also exists a great proportion of our archaeological material, it was pointed out that immediate steps were necessary to forestall complete destruction of many of our basic data on American prehistory.