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
Etna Township Mounds that the mounds are the work of a group of individuals isolated from the rest of their culture. Because excavation of the mounds is likely to yield valuable information about such isolated groups, the mounds are a potential archaeological site. In recognition of their archaeological value, the Etna Township Mounds were listed on the National Register of Historic Places in 1975. Etna Township Mounds The Etna Township Mounds are a pair of Native American mounds in Etna Township, Licking County, Ohio, United States. Located east of Reynoldsburg near Interstate 70, the mounds are built primarily of sand. Unlike typical Native