This image is of a large hall constructed for many purposes. The floor is marked to be used as a basketball court, and one wall has an elevated stage for performances and presentations.
The description states:
THE WORLD’S ONLY CORN PALACE
MITCHELL, SOUTH DAKOTA
This view is one of the stage that is housed in the world’s only Corn Palace. It is one of the largest stages in the Midwest. It is on this stage that the annual festival show is held. The big show is held the last week in September, but the building is open FREE the year around.
–The seating in front of the stage is clearly movable for shows where the focus is on the stage.
This image is likely from the 1940s.