 This regional mall serves a large portion of southeastern Arizona and northern parts of the Mexican state of Sonora.A recent survey indicated that as much as 30% of the mall's shoppers come from Sonora, traveling as far away as Nacozari and Cumpas, south of the border, just to shop there.In addition to shopping, the Mall at Sierra Vista hosts the annual Festival of Trees, the Festival of Giving, and an annual Car Show for the Boys and Girls Club.