58 x 46 cm., on sheet 87 x 102 cm., folded in envelope 30 x 24 cm. Relief shown by contours and spot heights. "Contour interval 40 feet." "Base from U.S. Geological Survey 1:62,500. 1954." "Geology mapped in 1985 and 1988." Includes text, bibliography, 4 col. cross sections, and location and index maps. "Prepared in cooperation with the U. S. Atomic Commission." Original publisher: U. S. Geological Survey, Series: Miscellaneous investigations series, map I, Scale: 1:24 000.
Transcribed from attached press release: "HUGHES READY FOR TAKE-OFF IN SECOND XF-11 FLIGHT. CULVER CITY, Calif., April 5. Howard Hughes, famed flier-industrialist, recovered from injuries following crash last July 7, is shown here just before he test-piloted today a duplicate of the plane in which he nearly lost his life. He designed and built the plane, designated XF-11, and one of the world's fastest photo-reconnaissance ships, for the Army Air Forces in conjunction with the Air Materiel Command engineers."