Color image maps, [ports of entry, United States-Canadian border]., [Index]

Reston, Va., U.S. Geological Survey, 1977-

Index Maps

Scale 1:25,000

Universal transverse Mercator proj., zone 18

(W 74°45ʹ00ʺ--W 71°45ʹ00ʺ/N 45°03ʹ30ʺ--N 44°57ʹ30ʺ).

Map

maps

col.

45 x 40 cm. or smaller.

Earth Sciences & Map Library

Each sheet separately titled, e.g., Alburg Springs Station, Vermont-Québec color image map.
Other title information supplied by cataloger.
"Photoimagery rectified by optical scanning of simultaneously exposed B/W panchromatic and B/W infrared 1:70,000-scale aerial photographs taken October 28, 1975, by the Department of Energy, Mines and Resources, Ottawa, Ontario, Canada."
Includes diagram of "Adjoining color image maps."

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