Canyon/ˈkænjən/ Definition 1 of 2Pro Tip 1/3Scale Clarification A 'canyon' suggests a large scale; smaller landforms are 'gorges' or 'ravines'. The vast canyon dwarfed the surrounding landscape. Pro Tip 2/3Cultural Icon Some canyons, like the Grand Canyon, are famous and carry cultural significance. We visited the Grand Canyon to appreciate its historic grandeur. Pro Tip 3/3Erosion Process Understanding that canyons are formed by erosion helps grasp their natural creation. The canyon was carved by the river over millions of years.