Topographic map of the Las Vegas Valley area, 1959

Scale 1:250,000 ; Transverse Mercator proj. (W 116°--W 114°/N 37°--N 36°) ; 1 map : col. ; 45 x 72 cm ; Relief shown by contours and spot heights. Contour interval 200 feet ; Margin title ; "Compiled in 1955 by photogrammetric methods by U.S. Coast and Geodetic Survey and from Nevada 1:48,000 and 1:62,500, USGS, 1952-54, and Nevada 1:50,000, CE, 1952. Planimetric detail revised by photo-planimetric methods. Horizontal and vertical control by USGS, USC& GS, and CE. Photography field annotated 1954. Road data 1954." ; Shows townships and ranges ; Gives 1955 declination from true north ; Includes location diagram, reliability diagram, and sectionalized township map ; Filing title: Las Vegas, Nevada; Arizona; California ; Interior--Geological Survey