Keywords: stereoscopic stereophotography stereophotographs historical usgs history geology mapping black and white blackandwhite bnw stereograph blackandwhite monochrome outdoor black and white General view of Green River in Split Mountain Canyon from above (3000 feet) at entrance. Looking downstream. Dinosaur National Monument. Uintah County, Utah. July 1871. General view of Green River in Split Mountain Canyon from above (3000 feet) at entrance. Looking downstream. Dinosaur National Monument. Uintah County, Utah. July 1871. |