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The printed results of this system reveal a "natural 
green" color version of the original CIR scene. 
The chromatic transposition was more attractive to the 
users because they could recognize ground features 
easier in natural colors. 
When collar, grid, graticule, the lettering guides, 
border information, etc., were prepared, Cromalin* 
color proofs were made to validate the procedures. 
All materials were then sent to the USGS Printing and 
Distribution Center for printing. Many of the carto 
graphic preparation steps have been omitted from 
this paper, because the actual photographic preparation 
is the subject matter of primary interest. 
Plow diagram represented is a schematic representation 
of the total process (see Figure 6). 
Figure 6.—Project flow diagram 
* Cromalin color proofs (Dupont trade name) - A 
negative working reproducible display system. This 
dry process provides a quick, low cost, and reliable 
display of color separation negatives in color which 
match any press inks.