Main Avenue Historic District in Durango, Colorado is a 34-acre (14 ha) historic district that was listed on the National Register of Historic Places in 1980. According to its 1980 NRHP nomination, it was deemed significant "because it represents the essence and core of both the evolution and development of business and commerce in the most important town in southwestern Colorado." The nine buildings then deemed most important are:(on the odd side) and on the even side * Burns Bank (1892), 900 Main * Old Post Office Building (1928), 1090-8 Main Others include: