Ghost TownUSA

Ghost Town · New Mexico

San Ygnacio de la Alamosa

A ghost town of unknown status in Sierra County County, New Mexico.

By the Ghost Town USA research team Last reviewed September 2026

San Ygnacio de la Alamosa isn't the ghost town on the postcards, which is exactly why it's worth knowing about. San Ygnacio de la Alamosa, also known as Alamosa, is now a ghost town, in Sierra County, New Mexico, United States.

Sierra County County holds 10 documented ghost towns, including Alamocita, Aleman, Chise — San Ygnacio de la Alamosa keeps them company on the map.

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The story of San Ygnacio de la Alamosa

New Mexico's ghost towns layer Spanish-era villages, railroad creations, and coal camps across a single stark landscape.

San Ygnacio de la Alamosa, also known as Alamosa, is now a ghost town, in Sierra County, New Mexico, United States. San Ygnacio de la Alamosa was founded in 1859 as a native New Mexican colonizing settlement from San Antonio. The site of the new colony was along the west bank of the Rio Grande, 35 miles south of Fort Craig, on the south bank of Alamosa Creek nearby its mouth and confluence with the Rio Grande, in what was then southern Socorro County.

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What you'll find today

The on-the-ground condition of San Ygnacio de la Alamosa is unverified — it's listed here with unknown status. That could mean standing buildings, or an empty field. Go prepared for either, and consider sharing what you find so the record improves.

Nobody has confirmed the access situation, so treat any visit as reconnaissance: verify land ownership first, and be ready to admire from the road.

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Getting there

Here's the honest truth: access to San Ygnacio de la Alamosa is unverified. We couldn't confirm whether the site sits on public land, private property, or something in between — so verify land ownership and local rules before visiting, and respect private property at all times. The mapped point for San Ygnacio de la Alamosa is roughly 33.3017, -107.1806 — use it as a starting point and cross-reference a current topographic map before leaving pavement.

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Good to know

Ghost-town etiquette is simple: take only photographs. Removing artifacts is illegal on public lands and disrespectful everywhere else — and on federal land it can be a serious offense.

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Survey Map

Approximate position — verify access locally before visiting

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San Ygnacio de la Alamosa FAQs

01Where is San Ygnacio de la Alamosa located?
San Ygnacio de la Alamosa is in Sierra County County, New Mexico, mapped near 33.3017, -107.1806.
02What county is San Ygnacio de la Alamosa in?
San Ygnacio de la Alamosa sits in Sierra County County, New Mexico. See our full guide to ghost towns in Sierra County County for its neighbors.
03What is the history of San Ygnacio de la Alamosa?
San Ygnacio de la Alamosa, also known as Alamosa, is now a ghost town, in Sierra County, New Mexico, United States. San Ygnacio de la Alamosa was founded in 1859 as a native New Mexican colonizing settlement from San Antonio.
04What remains at San Ygnacio de la Alamosa today?
The on-the-ground condition of San Ygnacio de la Alamosa is unverified — it's listed here with unknown status. That could mean standing buildings, or an empty field. Go prepared for either, and consider sharing what you find so the record improves.
05Can you visit San Ygnacio de la Alamosa?
Here's the honest truth: access to San Ygnacio de la Alamosa is unverified. We couldn't confirm whether the site sits on public land, private property, or something in between — so verify land ownership and local rules before visiting, and respect private property at all times. The mapped point for San Ygnacio de la Alamosa is roughly 33.3017, -107.1806 — use it as a starting point and cross-reference a current topographic map before leaving pavement.

Sources: account based on Wikipedia (“San Ygnacio de la Alamosa, New Mexico”), CC BY-SA.

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More in Sierra County County

All 10 ghost towns in Sierra County County →