What are 3 major landforms in southwest US?

Three major landforms in the southwestern United States include the Grand Canyon, which showcases dramatic geological formations and the Colorado River; the Colorado Plateau, known for its vast desert landscapes and distinctive rock formations; and the Sonoran Desert, characterized by its unique flora and fauna, including the iconic saguaro cactus. These landforms highlight the region's diverse geology and ecosystems, attracting millions of visitors each year.