The Sonoran Desert, a unique desert ecosystem in the southwestern United States, is known for its striking landscapes and diverse wildlife. Saguaro National Park, located near Tucson, is famous for its towering saguaro cacti, which can grow up to 40 feet tall. The desert is also home to a variety of animals, including desert tortoises, Gila monsters, and roadrunners. The region offers numerous outdoor activities, including hiking, birdwatching, and stargazing.