El Dorado County is located in the Sierra Nevada region of California, known for its stunning natural landscapes, including mountains, forests, and lakes. The county was established in 1850 and is famous for its role in the California Gold Rush, attracting many prospectors and settlers seeking fortune. The county seat is Placerville, a historic town that reflects the area's rich mining history. El Dorado County offers various outdoor recreational activities, such as hiking, skiing, and fishing, making it a popular destination for nature enthusiasts and tourists alike.