Earth Day and the month of April is about taking care of the physical environment on Earth, but it is also important to honor the spiritual aspects of this little green planet. Nobody represents the spirit of Mother Earth with greater pageantry than America's indigenous nations. Native American dancers, singers, artisans & crafters from all over the continent will gather at Crisler Arena for the 41st annual Ann Arbor Dance for Mother Earth Powwow on Saturday & Sunday, April 6-7. Different troupes of dancers and accompanying drummers, ranging in age from toddlers to elders, will compete throughout the weekend. Vendors will provide a variety of American Indian cultures with art exhibits, traditional foods and informational booths. Saturday & Sunday, 10:30am-7pm. $10 day pass / $15 weekend pass. Crisler Arena, 333 East Stadium Blvd. 734-408-1581.