Lassen County, California, is located in the northeastern part of the state. It covers an area of approximately 4,700 square miles and is known for its diverse landscapes, including mountains, forests, and lakes. The county seat is Susanville, which serves as the primary hub for government and services. The region is home to Lassen Volcanic National Park, famous for its geothermal features and volcanic landscapes. Outdoor activities such as hiking, fishing, and camping are popular among residents and visitors. The county's economy is primarily based on agriculture, forestry, and tourism.