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Alturas (formerly, Dorris Bridge, Dorris' Bridge, and Dorrisville) is the county seat of Modoc County, California, United States. Alturas is located on the Pit River, east of the center of Modoc County. the town is a home to regional government offices, including a California Highway Patrol office and a state Department of Motor Vehicles office.
The city was initially known as Dorris Bridge (or Dorris' Bridge), named after Pressley and James Dorris, who built a bridge across the Pit River at this location.
Alturas is the headquarters to the Modoc National Forest, the Alturas Field Office of the Bureau of Land Management, the Modoc National Wildlife Refuge and other recreation areas, and is the trade center for the agricultural region, which produces beef, sheep, potatoes, alfalfa and lumber. Despite its abundance of wilderness, recreational opportunities, hunting and fishing resources, and resplendent natural beauty, tourism is not a major sector of the local economy—largely due to the city's remote location.