Avenue B and C, AZ

Avenue B and C is a small desert community of 4,000 people in southwestern Arizona, about 10 miles south of Yuma via Avenue B from Interstate 8. The town sits in agricultural valley near the Colorado River and California border, with State Route 95 providing north-south access to I-10. It's home to one of Arizona's last agricultural post offices, still operating with original 1952 brass mailbox slots.