Engineering geology
U.S. Geological Survey_simbol_geology_03

Symbols used on topographic quadrangle maps produced by the U.S. Geological Survey.

Symbols used on topographic quadrangle maps produced by the U.S. Geological Survey.

Control data and monuments

Contours

Boundaries

Surface features

Mines and caves

Vegetation

Glaciers and permanent snowfields

Marine shoreline

Submerged areas and bogs

Coastal features

Rivers, lakes, and canals

Buildings and related features

Roads and related features

Roads on Provisional edition maps are not classified as primary, secondary, or light duty. They are all symbolized as light duty roads.

Railroads and related features

Transmission lines and pipelines

Produced by the U.S. Geological Survey.

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