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-class corvette Etna-class corvette The "Etna" class was a class of six 16 or 18-gun corvettes with a flat hull, designed by Pierre-Alexandre-Laurent Forfait and his pupil Charles-Henri Tellier. Four separate commercial shipbuilders were involved in their construction by contract - including André-François Normand, Courtois and Denise at Honfleur, and Fouache at Le Havre (2 ships), while the sixth vessel was built by Pierre Ozanne at Cherbourg Dockyard. The vessels were flush-decked and originally designed to carry a 12" mortar. However, as the British navy captured "Etna" within a year and a half of her launch at which time she was not