Shows soil types classification by colors and symbols. , "Surveyed in 1938. Series 1938."
Imprint: [Washington, D.C.?] : Bureau of Soils, [1938?]
Scale: 1:31,680; Dimensions: 115 x 125 cm, on sheets 126 x 93 cm
Coordinates: W0863100 W0860300 N0414600 N0412600