The Wiyot massacre refers to the incidents on February 26, 1860, at Tuluwat, near Eureka in Humboldt County, California. In coordinated attacks beginning at about 6 am, White settlers murdered 80 to 250 Wiyot people with axes, knives, and guns. The February 26 attacks were followed by similar bloody attacks on other Wiyot villages later that week in what were part of the broader California Genocide.

Rio Dell is a city in Humboldt County, California, United States. It is located on the west bank of the Eel River 1 mile (2 km) north of Scotia at an elevation of 161 feet. The population was 3,363 at the 2010 census, up from 3,174 at the 2000 census.