The Best of the Internets: MapPorn: Sight Lines used to measure height of the Himalayan peaks, part of the Great Trigonometric Survey, 1857. [3825×2600]

Wednesday, February 25, 2015

MapPorn: Sight Lines used to measure height of the Himalayan peaks, part of the Great Trigonometric Survey, 1857. [3825×2600]

http://i.imgur.com/44GWoYh.jpg via /r/MapPorn http://www.reddit.com/r/MapPorn/comments/2x58mj/sight_lines_used_to_measure_height_of_the/

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