Every September in Sioux Falls, South Dakota, they hold the Northern Plains Art Expo to display and promote their artwork.
Every September in Sioux Falls, South Dakota, they hold the Northern Plains Art Expo to display and promote their artwork.
每年九月在南达科他州的苏瀑，他们都会举办北美平原艺术展览会，藉以展示及发扬他们的艺术作品。