In lower left margin: Andrew B. Graham Co., lithographers, Washington, D.C. In lower right margin: Oliver B. Harden del. Includes notes and profile of canal. Oriented with north toward upper left. Relief shown by contours and hachures. Depths shown by soundings. Supplement to National Geographic, October 1905.
1 map : col. ; 59 x 81 cm.
Extent of Digitization
(W 80⁰10ʹ--W 79⁰20ʹ/N 9⁰30ʹ--N 8⁰50ʹ)., 100000, a, N0085000, N0093000, W0792000, and W08010000
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