Shows soil types classification by colors and symbols. "Field Operations Bureau of Soils 1914." "Snyder & Black, N.Y."
Imprint: [Washington, D.C.?] : Bureau of Soils. [1914?]
Dimensions: 59 x 54 cm; Scale: 1:63,360
Coordinates: W0860300 W0854000 N0414600 N0412600