The San Pedro House, a 1930’s-era converted ranch house, serves as a bookstore and visitor center for The San Pedro Riparian National Conservation Area (NCA), which contains nearly 57,000 acres of public land in Cochise County, Arizona, between the international border and St. David, Arizona. The Friends of the San Pedro lead regularly scheduled guided walks. Phone: (520) 508-4445. Open Daily from 9:30 to 4:30. Operated by Friends of the San Pedro River.