National Geographic Society (U.S.). the National Geographic Magazine. Also shows railroads and volcanos over printed in red. Relief shown by hachures and spot heights. Inset: Western ... National Geographic Society.
Search Results
2. Map showing location of Panama Canal : as recommended by the Isthmian Canal Commission of 1899-1902
1905. National Geographic Society (U.S.). Scale 1:100,000 Relief shown by contours and hachures. Depths shown by soundings. Oriented with north toward upper left. In lower left margin: Andr... National Geographic Society.