Etna, California Etna, California Etna is a city in the Scott Valley area of Siskiyou County, California, United States. The population was 737 at the 2010 census, down from 781 at the 2000 census. Originally named Rough and Ready, it was changed by statute in 1874 to Etna after the local flour mill (spelled Ætna/Aetna after Mount Ætna in Sicily). Etna is located at (41.457350, -122.896875). Etna is in Northern California near the Oregon border, located in Scott Valley near the CDP of Greenview, the city of Fort Jones, and the unincorporated community of Callahan. Etna is located at the foot of
Etna, Missouri Etna, Missouri Etna is an unincorporated community in Scotland County, Missouri, United States. It lies at an elevation of 755 feet (230 m). The first settlement at Etna was made as early as 1855 by a colony of Germans. Etna, named for the Sicilian volcano, was surveyed and laid out in April, 1865 by Andrew Hunt. Etna was the site of a small skirmish during the early days of the Civil War. On July 21, 1861, the 1st Northeast Missouri Home Guards under Colonel David Moore, with assistance of additional units from Iowa and Illinois, attacked pro-Confederate Missouri State Guard