Costilla County Colorado (Vacant / Not In Use) has 1 places on the National Register of Historic Places.
Some of the country's most noteable architects helped create the Costilla County places including San Luis Southern Railway Company. Prominent architectural styles found in Costilla Country are .
San Luis Southern Railway Trestle
(added 2004 - #03001361)
Also known as Rattlesnake Trestle, 5CT.398
abandoned section of Costilla Cty Rd. 12 , https://npgallery.nps.gov/AssetDetail/NRIS/03001361