About Modoc County

Modoc County is a county located in the far northeast corner of the U.S. state of California, bounded by the state of Oregon to the north and the state of Nevada to the east. As of the 2010 census, its population was 9,686, up from 9,449 at the 2000 census. The current county seat is Alturas, the county's only incorporated city. Previous county seats include Lake City and Centerville; the latter is now a ghost town. The county's official slogans include, "The last best place," and "Where the West still lives."

A large portion of Modoc County is federal land. Several federal agencies, including the United States Forest Service, Bureau of Land Management, National Park Service, Bureau of Indian Affairs, and the United States Fish and Wildlife Service, have employees assigned to the area, and their operations are a significant part of the economy and services in this rural area.

Modoc County is the only county in California to be bordered by both Nevada and Oregon, and is also one of three counties in California to border more than one state (the other counties being San Bernardino County, bordered by Nevada and Arizona; and Imperial County which borders Arizona and Baja California in Mexico). In California, this is the only almost rectangular county; there is a slight deviation around the Tule Lake National Wildlife Refuge.

Prior to the arrival of Europeans in the region, varying cultures of Native Americans inhabited the county for thousands of years. At the time of European encounter, the Modoc people lived in what is now northern California, near Lost River and Tule Lake. The county was named after them. The Achumawi (or Pitt River Indians, for which the Pit River is named), and the Paiute also lived in the area. To the north were the Klamath in present-day Oregon.

Modoc County was formed when Governor Newton Booth signed an Act of the California Legislature on February 17, 1874 after residents of the Surprise Valley region lobbied for the creation of a new county from eastern Siskiyou County land. The county residents considered naming the newly formed county after General Edward Canby, who had been killed the year before at peace talks in an ambush by Modoc. The idea of naming the county "Summit" was also considered, but the populace eventually settled on "Modoc"; the war was over and 153 of Captain Jack's band had been transported to Indian Territory as prisoners.

The county is very diverse geographically. The northwestern edge of the county is dominated by the Medicine Lake Highlands, the largest shield volcano on the U.S. West Coast. The Lava Beds National Monument lies partly within the northwest corner of the County. Also along the western edge of the county is the massive Glass Mountain lava flow. The southwestern corner of the county is a unique ecosystem of isolated hardwoods (oaks) and volcanic mountains with intermountain river valleys.