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) of "Etna" was substantially affected by the rise and fall of river levels, which were generally seasonal. Small craft like "Etna" on the Columbia River system were sometimes referred to at the time as the "mosquito fleet" "Etna" was built in Portland, Oregon in 1906 for Horace Campbell by the Portland shipyard of Joseph Supple. Campbell was a steamboat engineer with extensive experience on the Lewis and Lake rivers. "Etna" was exclusive of the extension of the deck over the stern, called the fantail, on which the stern-wheel was mounted. "Etna" had a beam of exclusive of the protective timbers