In upper right: Supplement to the National Geographic, October 1977, page 486A, vol. 152 no. 4-Close-up U.S.A., the Southwest. Includes list of abreviations. Relief shown by shading and spot heights. Shows points of interest. Text and col. ill. on verso.
1 map : col. ; 89 x 58 cm., folded to 23 x 15 cm.
Extent of Digitization
Albers conical equal-area proj., standard parallels 29⁰30' and 45⁰30'
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