Massachusetts. Wellfleet sheet. Preliminary edition subject to corrections. U.S. Geological Survey, J.W. Powell, Director. State of Massachusetts ... commissioners. Henry Gannett, Chief Geographer. Marcus Baker, geographer in charge. Triangulation by the U.S. Coast and Geodetic Survey. Topography by the U.S. Coast and Geodetic Survey and by E.B. Clark. Surveyed in 1887. Forbes Co., Boston & N.Y. (1890)