Main Avenue Historic District in Durango, Colorado is a 34 acre 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." In 1980 it included 104 buildings: 86 buildings deemed to contribute to the historic character of the area, 12 non-contributing but compatible modern buildings, and 6 negative intrusions. It was felt that "together these buildings still maintain the feelings, associations, and ambiance of a turn-of-the-century commercial district." The nine buildings then deemed most important are: (on the odd side) and on the even side Others include: