The Great Basin is a large, arid region located in the western United States, primarily within the states of Nevada, Utah, and parts of California, Oregon, and Idaho. It is characterized by its unique geography, which includes mountain ranges, valleys, and desert landscapes. The area is known for its low precipitation and high evaporation rates, making it one of the driest regions in North America. This basin is defined by its internal drainage system, meaning that rivers and streams do not flow into the ocean but instead end in lakes or evaporate. The largest lake in the Great Basin is Great Salt Lake, which is a remnant of ancient Lake Bonneville. The region is also home to diverse ecosystems, including sagebrush steppe and high desert, supporting various wildlife and plant species.