Relief shown by hachures, spot heights, and bathymetric isolines. Prime meridians: Greenwich and Washington. Shows California/Nevada border as irregular, following the Sierra Nevada Mountains; Arizona below New Mexico with an unhighlighted border; and county borders extending beyond state boundaries. Includes rivers, roads, towns, and locations of Native American tribes. Numbered 54 and 55. From "Johnson's New illustrated (steel plate) family atlas ... / compiled, drawn, and engraved under the supervision of J.H. Colton and A.J. Johnson. New York, Johnson & Browning." 1 map: hand col.; 42 x 62 cm.