Imperial County is a region located in the southeastern part of California, near the border with Mexico. It is known for its vast desert landscapes, including the Imperial Sand Dunes, which are popular for off-roading and sandboarding. The county is also home to the Salton Sea, a large, shallow saline lake that attracts birdwatchers and outdoor enthusiasts. The city of El Centro serves as the county seat and is the largest city in the region. It is a hub for agriculture, with vast fields of crops such as lettuce, carrots, and onions. The county's economy is also supported by the military presence at the Naval Air Facility El Centro.