A photograph taken by Rupert B. Spearman of the hub of the Boulder City Airport as seen from the roof of the Grand Canyon Airlines hanger on March 30, 1937. Site Name: Boulder City Municipal Airport (Boulder City, Nev.)
'Compiled, drawn, and engraved under the supervision of J.H. Colton and A.J. Johnson.' Relief shown by hachures and spot heights. Scale [ca. 1:3,041,280]. 1 in. to approx. 48 miles (W 124°--W 103°/N 42°--N 31°). Hand colored Prime meridians: Greenwich and Washington Plates 54 & 55 removed from Johnson's New illustrated family atlas of the world, with descriptions geographical, statistical and historical ... New York, 1862 Title page of atlas.