Alturas (County seat) • Adin • Canby • Cedarville • Davis Creek • Eagleville • Fort Bidwell • Newell • Stronghold • Tionesta Map of Earth showing lines of latitude (horizontally) and longitude (vertically), Eckert VI projection; large version (pdf, 1. ... Modoc County is a county located in Californias far northeast corner, bounded by Oregon to the north and Nevada to the east. ... Alturas is the county seat of Modoc County, California. ... A county seat is a term for an administrative center for a county, primarily used in the United States. ... Adin is a town in Modoc County, California with a population of 559. ... Canby is a town in California with a population of 413 people. ... Cedarville is a town located in Modoc County, California. ... Newell is a small community about 4,000 feet above mean sea level in Modoc County, California in the United States. ... Stronghold, California is in Modoc County near the Oregon border. ...