Air navigation chart V30 (series). 16. Lat. 29° N-45° N, long. 122° E-90° B. Scale 1=30 naut. m. at lat. 37°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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