1905 USGS Bradshaw Mountains Arizona Photo Plate Walcott Survey Geological Print For Sale

This original 1905 U.S. Geological Survey illustration plate from the Bradshaw Mountains Quadrangle in Arizona features six high-quality halftone photographs documenting early geological fieldwork under USGS Director Charles D. Walcott, showing landscapes around Copperopolis, Sheep Mountain, the Bradshaw Mountains, Agua Fria Creek, onyx marble and travertine breccia near Mayer, and quartz-diorite contact breccia at Tower Mountain, printed on heavy stock paper with crisp detail and minimal edge wear, making it an authentic early-20th-century geological collectible ideal for framing, research, or Arizona mining history enthusiasts.[d2]