A route marked on a map to Gypsum. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3296327/free-photo-image-passport-map-colorado-rugFree Image from public domain licenseAn icy map of the Colorado River and its tributaries. Original public domain image from Flickr https://www.rawpixel.com/image/4033224/photo-image-texture-nature-iceFree Image from public domain licenseBaja California, Colorado river and Sonora Desert. Original from NASA. Digitally enhanced by rawpixel. https://www.rawpixel.com/image/441734/free-photo-image-nasa-water-riverFree Image from public domain licenseGezicht op Totltec kloof (c. 1894 - in or before 1899) by anonymous https://www.rawpixel.com/image/13759145/gezicht-totltec-kloof-c-1894-before-1899-anonymousFree Image from public domain licenseGezicht op Clear Creek Canon (c. 1894 - in or before 1899) by anonymous https://www.rawpixel.com/image/13759093/gezicht-clear-creek-canon-c-1894-before-1899-anonymousFree Image from public domain license