Skip to contentUtah - Arizona Colorado River Miscellaneous Dam Sites / C. H. Birdseye, Chief Topographical Engineer, T. G. Gerdine, Division Topographic Engineer, Topography by C. H. Birdseye and W. R. Chenowith, Control by U. S. Coast and Geodetic Survey, Surveyed in 1921 and 1922 | Collections | The Huntington