Di bawah pertemuan dengan Sungai Green, anak sungai terbesar, di Taman Nasional Canyonlands, Sungai Colorado memasuki Cataract Canyon, dinamakan sempena jeram yang berbahaya, dan kemudian Glen Canyon, terkenal dengan pembentukan gerbang dan mercu batu pasir Navajo yang dipahat oleh hakisan.
Below the confluence with the Green River, its largest tributary, in Canyonlands National Park, the Colorado enters Cataract Canyon, named for its dangerous rapids, and then Glen Canyon, known for its arches and erosion-sculpted Navajo sandstone formations.WikiMatrix WikiMatrix