Air navigation chart V30-16 to V30-91 (with omissions). V30-16. Lat. 29° N-45° N. long. 122° E-90° E. Scale 1″=30 naut. m. (1:2,188,800) at lat. 3 30′, contour interval 1,000, 2,000, 3,000, 5,000, 7,000, 9,000, 12,000, 15,000, 20,000 and 25,000 ft.

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