View into Walnut Canyon National Monument, located about 10 miles from Flagstaff, Arizona. https://www.rawpixel.com/image/582367/carol-highsmiths-arizona-photographFree Image from public domain licensePre-Columbian peoples used these ledges as protection from rain and snow in Walnut Canyon National Monument, located about… https://www.rawpixel.com/image/582346/carol-highsmiths-arizona-photographFree Image from public domain licensePre-Columbian peoples used these ledges as protection from rain and snow in Walnut Canyon National Monument, located about… https://www.rawpixel.com/image/582344/carol-highsmiths-arizona-photographFree Image from public domain license