Mission Garden in Tucson preserves a Santa Cruz River farming landscape shaped by more than 4,000 years of agriculture in the Sonoran Desert. On the former fields and orchards of San Agustin Mission, it presents Indigenous, Spanish Colonial, Mexican, Territorial, Chinese, and African-descended food traditions through cultivated plots, orchards, and irrigation features. The site reflects both continuity and loss: early O’odham farming, mission-era crops and orchards, later agricultural change after Mexican independence and U.S. control, and the destruction of the old mission area in the twentieth century. Restored through local activism and volunteer work, it now serves as a historical landscape, community resource, and rare meeting place of archaeology, agriculture, and Tucson’s layered past.