Status of important farmlands maps as of January 1, 1982 : Massachusetts
Title in right upper margin: Important farmlands maps. "Base map constructed by the Cartographic Division, Soil Conservation Service USDA, from USGS maps, 1:250,000 Series." In right lower margin: Figure 6. Includes notes and index of important farmlands maps. "12,975." Available also through the Library of Congress Web site as a raster image.
United States. Soil Conservation Service