Lassen County is located in the northeastern portion of the state of California. The county is boarded by Modoc to the north, Shasta to the west, Plumas and Sierra to the south and the Nevada state line to the east. As of 2000 the population was 33,828. The county seat is Susanville, the only incorporated city in the county.

Lassen County was formed in1864 from parts of Plumas and Shasta Counties following the two-day conflict known as the "Sagebrush War” that started on February 15, 1863. Due to uncertainties over the California border, what is now Lassen County was part of the unofficial Nataqua Territory and Roop County, Nevada during the late 1850s and early 1860s.

The county was named after Peter Lassen, along with Mount Lassen, which is actually in neighboring Shasta County. A narrow gauge railroad ran through Lassen County from 1880 to 1927, and was called the Nevada-California-Oregon Railway. The NCOR was the longest small gauge of the century.

County Website: http://www.co.lassen.ca.us

School District: http://www.lassencoe.org