Record
About Tercio
Tercio is a ghost town and former coal mine in Las Animas County, in the U.S. state of Colorado. The GNIS classifies it as a populated place.
This is a site record: what public sources say about Tercio, gathered in one place. We haven't written a full guide yet, so history, current access and photos are still to come. Treat the status as unknown until a guide confirms it.
Map
Where Tercio is

Historic maps
15 historic USGS maps cover Tercio
Topographic sheets from the USGS Historical Topographic Map Collection (public domain), oldest first. Older sheets often show the camp, mines and roads while the place was alive. The downloads are large map scans; USGS topoView shows them in the browser.
- 1891 Spanish Peaks sheet, 1:125,000 · GeoTIFF download
- 1891 Trinidad sheet, 1:125,000 · GeoTIFF download
- 1893 Spanish Peaks sheet, 1:125,000 · GeoTIFF download
- 1893 Trinidad sheet, 1:125,000 · GeoTIFF download
- 1895 Spanish Peaks sheet, 1:125,000 · GeoTIFF download
- 1897 Spanish Peaks sheet, 1:125,000 · GeoTIFF download
- 1900 Spanish Peaks sheet, 1:125,000 · GeoTIFF download
- 1954 Trinidad sheet, 1:250,000 · GeoTIFF download
- 1955 Trinidad sheet, 1:250,000 · GeoTIFF download
- 1958 Trinidad sheet, 1:250,000 · GeoTIFF download
- 1959 Trinidad sheet, 1:250,000 · GeoTIFF download
- 1971 Tercio sheet, 1:24,000 · GeoTIFF download
- 1982 Trinidad sheet, 1:100,000 · GeoTIFF download
- 1983 Alamosa sheet, 1:100,000 · GeoTIFF download
- 1988 Trinidad sheet, 1:250,000 · GeoTIFF download
Directions
Getting there
Before you go
- Many ghost town sites are on private land, active mining claims or tribal land. Check land status and ask permission.
- Roads to old townsites are often unmaintained dirt. Map apps may route over closed or impassable tracks.
- Removing artifacts from public land is illegal under federal and most state laws.
Nearby
Other sites near Tercio
Straight-line distance to other mapped sites in our Colorado index.
Sources
Sources
- Wikipedia, "Tercio, Colorado": coordinates and summary.
- Wikidata Q27995431.
- USGS GNIS 194781.
- USGS 3D Elevation Program, elevation at the coordinates.
- USGS The National Map and Historical Topographic Map Collection (public domain).