Etna, Minnesota Greenleafton. Nearby places in Iowa include Chester and Lime Springs. Etna is located 5 miles east of Ostrander; and 4 miles west of Cherry Grove. Forestville Mystery Cave State Park is also nearby. Etna, Minnesota Etna is an unincorporated community in Bloomfield Township, Fillmore County, Minnesota, United States. Etna is located within ZIP code 55975 based in Spring Valley. A post office previously operated in the community of Etna from 1856 to 1901. The community was named for Mount Etna, on Sicily. The community is located 8 miles southeast of Spring Valley, at the junction of Fillmore County 14 and
Italian cruiser Etna which time she made a visit to Sydney, Australia. She returned home in 1902 and was disarmed; she was then commissioned as the flagship of the Superior Torpedo-Boat Command in 1904. In 1907, "Etna" was converted into a training cruiser for naval cadets. "Etna" visited the United States in September 1909 for the Hudson-Fulton Celebration in New York City, which also included ships from the German, British, and French fleets, among others, in addition to the hosting US Navy. On this occasion, she was joined by the cruiser . "Etna" saw limited action during the Italo-Turkish War in 1911–12. At