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Mad River

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Location type: River
Location address: Humboldt
Number of texts: 1
3 stars
Made by | Reference Shannon1 | © CC 3.0
Made by | Reference | © CC 3.0

The Mad River is a river in upper Northern California. It flows for 113 miles (182 km) in a roughly northwest direction through Trinity County and then Humboldt County, draining a 497-square-mile (1,290 km2) watershed into the Pacific Ocean north of the college town of Arcata near Arcata-Eureka Airport in McKinleyville. The river’s headwaters are in the Coast Range near South Kelsey Ridge.

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