Overview
The Missouri River flows past Pierre, and just upstream the Oahe Dam holds back Lake Oahe, one of the largest reservoirs in the country.
History
Lewis and Clark traveled through the area in 1804. The Oahe Dam was completed in the 1960s.
Today
Fishing and boating draw visitors to the river and lake.
Compiled October 2026. History is summarized for general interest; check primary sources for research. This landmark is local context, not an employer or job listing.