 Later on. The City of Yuma's 13th Annual Back to School Rodeo will take place at the Yuma Civic Center on Saturday, July 20th from 9 a.m. to 1 p.m. The first 2,000 students, K-8 grade, will receive a bag filled with school supplies. Child must be present, one bag per child. Details by searching Back to School Rodeo on Facebook.