Thunder Butte, Schnasse Co., SD - 1909 Business Directory This file contains a listing from "South Dakota State Business Directory", published by The Gazetteer Publishing Co., Denver, CO in 1909. This listing shows business in the town of Thunder Butte. This information transcribed by Joy Fisher, http://www.rootsweb.com/~archreg/vols/00001.html#0000031 and may be freely copied for non-profit purposes. All other rights reserved. Thunder Butte Postoffice in Schnasse county, on the Cheyenne River Indian Reservation, 80 miles southwest of Mobridge, the usual railroad point. Population, white, 10. Last Name First Name Business Bentley Viola B. postmaster