Etna (formerly Etha) is an

unincorporated community An unincorporated area is a parcel of land that is not governed by a local general-purpose municipal corporation. (At p. 178.) They may be governed or serviced by an encompassing unit (such as a county) or another branch of the state (such as th ...

in Custer County,

Nebraska Nebraska ( ) is a landlocked U.S. state, state in the Midwestern United States, Midwestern region of the United States. It borders South Dakota to the north; Iowa to the east and Missouri to the southeast, both across the Missouri River; Ka ...

, United States. It lies at an elevation of . A post office was established at Etna in 1885, and remained in operation until it was discontinued in 1921. Etna no longer exists, a simple roadside marker indicates the location of the former town. The school survived until 1966, but most other establishments (general store, post office, etc.) closed in 1931. There is a mailbox next to the marker with a book of historical information about Etna and a guest book to sign.

References

Unincorporated communities in Custer County, Nebraska Unincorporated communities in Nebraska {{CusterCountyNE-geo-stub