United States Post Office–Blackfoot Main

The U.S. Post Office–Blackfoot Main, located in Blackfoot, Idaho, is a historic site built in 1936 and listed on the National Register of Historic Places in 1989. Designed by architect Gilbert Stanley Underwood, it features Moderne architecture. A highlight of the interior is a five-panel mural titled 'The Arrival Celebration,' painted in 1939 by Sioux artist Anthony Standing Soldier, which adds cultural significance to this architectural gem.