 Her work was essential to the renovation of the original Washington High School into the Washington Pavilion (housing two performing arts, a visual arts, and a science center).The Northern Plains Indian Art Market (NPIAM) was established in 1988 by American Indian Services, Inc., of Sioux Falls as the Northern Plains Tribal Arts Show (NPTA).Northern Plains Tribal Arts dominated the Sioux Falls art scene from its inception in 1988.