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
Etna (sternwheeler) bore and stroke of . In December 1912, Etna Transportation Company, owners of "Etna", bought an electric generator to install on the steamer. Electric lights were made necessary because of the increased level of traffic on the river required the steamer to operate during darkness, particularly in the winter when the days were shorter. Horace Campbell planned to use "Etna" on the Lewis River route in conjunction with the sternwheeler "Mascot". Logging camps and mills up the Lewis river depended on shallow-draft steamers like "Etna" to bring in supplies. "Etna" also carried passengers. In June 1910, when low water barred