2023. Stanford Geospatial Center. This polygon shapefile is an index to the map series, '極東「ソ」領飛行場一覧圖 (東部國境) | 五十万分一東部國境近傍圖 -- Kyokutō "So" ryō hikōjō ichiran zu (Tōbu kokkyō) | 1:5... Stanford Digital Repository.
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Reprint "April 1947 Kyodo Printing Co. Ltd." Airport locations printed in red/blue on the map. Relief shown by contours and spot heights. Text in J...
Relief shown by contours and spot heights. Includes text, note of geographical features and index map to adjoining sheets. Military grid. Text in J...
Relief shown by contours and spot heights. Includes text, note of geographical features and index map to adjoining sheets. Military grid. Text in J...
Relief shown by contours and spot heights. Includes text, note of geographical features and index map to adjoining sheets. Military grid. Text in J...
Relief shown by contours and spot heights. Includes text, note of geographical features and index map to adjoining sheets. Military grid. Text in J...
Relief shown by contours and spot heights. Includes text, note of geographical features and index map to adjoining sheets. Military grid. Text in J...
Relief shown by contours and spot heights. Includes text, note of geographical features and index map to adjoining sheets. Military grid. Text in J...
Relief shown by contours and spot heights. Includes text, note of geographical features and index map to adjoining sheets. Military grid. Text in J...
Rikuchi Sokuryōbu, Sanbō Honbu. 陸地測量部, 参謀本部. Relief shown by contours and spot heights. Includes text, note of geographical features and index map ...