This manual establishes the design, weights, and gauges of symbols, and the type styles and sizes to be used in compiling and drafting standard topographic maps prepared by the Army Map Service for publication at the scale of 1:1,000,000.
During the compilation stages, strict adherence to symbol specifications shall not be required. Line weights and gauges may be varied twenty percent (20%), plus or minus, from prescribed specifications.
In using the symbols specified for drafting, strict adherence to the prescribed weights and gauges must be maintained.
The examples below are map symbols for permanent ice and snow features.
The 1953 Army Map Service guide Symbols for Small Scale Maps details map symbol specifications for compiled maps (left, below) and drafted maps (right, below). Compiled maps are the initial draft of a map, where diverse sources of information are drawn together. Using the compiled map, a cartographic draftsman creates the final, drafted map, suitable for printing.
The map symbol specifications include detailed symbol dimensions:
Specifications for glaciers:
Specifications for ice cliffs:
Specifications for the limits of icefields or snowfields:
The entire page 22 of the Army Map Service Symbols for Small Scale Maps, including specifications for permanent snow and ice features is linked below: