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
Mount Chappell Island Mount Chappell Island The Mount Chappell Island, part of the Badger Group within the Furneaux Group, is a unpopulated mainly dolerite island with a distinctive central hill, located in Bass Strait, lying west of the Flinders and Cape Barren islands, Tasmania, south of Victoria, in south-eastern Australia. The island was originally named "Mount Chappelle" by Matthew Flinders for his wife's maiden name. The island is private property, used for grazing sheep and Cape Barren geese, and is a classic example of natural habitat degradation caused by human activities. The island forms part of the Chalky, Big Green and Badger Island