Denver & Rio Grande Railroad San Juan Extension
Built 1970. Added to the National Register in 1973, and a National Historic Landmark.
The record
| Property type | Historic district |
| Address | Between Antonito and Chama, NM via Cumbres Pass, Antonito, CO |
| County | Archuleta County |
| Listed | Feb 16, 1973 |
| Listed for | Commerce, Engineering, Transportation |
| Level of significance | National |
| Also known as | Cumbres and Toltec Scenic Rairoad |
| Reference number | 73000462 |
| Built | 1970 · more from the 1970s |
| Designations | National Historic Landmark, Historic Civil Engineering Landmark |
The nomination form, the document that argues why this place matters, is in the National Archives: Read the nomination ↗
Visiting
| Address | Between Antonito and Chama, NM via Cumbres Pass, Antonito, CO |
| Coordinates | 36.9000° N, 106.5833° W · Directions ↗ |
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Map
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Titles come from Open Library's catalog, matched by subject heading or by title.
Reference
Questions people ask
When was Denver & Rio Grande Railroad San Juan Extension listed on the National Register?
Feb 16, 1973. It is also a National Historic Landmark, the higher of the two designations.
Source: National Park Service
When was Denver & Rio Grande Railroad San Juan Extension built?
1970.
Source: Wikidata
Where is Denver & Rio Grande Railroad San Juan Extension?
Between Antonito and Chama, NM via Cumbres Pass, Antonito, Archuleta County, Colorado.
Source: National Park Service
Where is the nomination form for Denver & Rio Grande Railroad San Juan Extension?
The National Archives holds the nomination form, the document that made the case for listing.
Source: National Archives
Is there a wildfire near Denver & Rio Grande Railroad San Juan Extension right now?
3 active incidents within 50 miles as of 2026-10-17, nearest Martinez Fall Rx, 33 miles away.
Source: Map
Sources
Name, location, type and dates come from the National Register office's spreadsheet of listed properties, because the Park Service's spatial data does not carry this listing. The map point comes from Wikidata. Construction date, architect, style, photograph and encyclopedia link come from Wikidata and Wikimedia Commons, matched on reference number 73000462. Nothing here is transcribed by hand. The nomination form and photographs ↗ at NPGallery are the original nomination as filed with the National Park Service, and the form is often the best description of the place.