Ghost TownUSA

Ghost Town · Maryland

Monocacy

A ghost town of unknown status in Frederick County County, Maryland.

By the Ghost Town USA research team Last reviewed September 2026

There's a particular quiet you only find where a town used to be. Monocacy has it. Monocacy National Battlefield is a unit of the National Park Service, the site of the Battle of Monocacy in the American Civil War fought on July 9, 1864.

Frederick County County holds 2 documented ghost towns, including Harmony Grove — Monocacy keeps them company on the map.

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The story of Monocacy

Maryland's ghost towns are mill villages, iron furnaces, and canal towns from the state's industrial era.

Monocacy National Battlefield is a unit of the National Park Service, the site of the Battle of Monocacy in the American Civil War fought on July 9, 1864. The battlefield straddles the Monocacy River southeast of the city of Frederick, Maryland. The battle, labeled "The Battle That Saved Washington," was one of the last the Confederates would carry out in Union territory. The two opposing leaders were General Jubal Early, fighting for the South, and General Lew Wallace, fighting for the North.

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What you'll find today

The on-the-ground condition of Monocacy 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 Monocacy 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 Monocacy is roughly 39.3712, -77.3921 — 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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Monocacy FAQs

01Where is Monocacy located?
Monocacy is in Frederick County County, Maryland, mapped near 39.3712, -77.3921.
02What county is Monocacy in?
Monocacy sits in Frederick County County, Maryland. See our full guide to ghost towns in Frederick County County for its neighbors.
03What is the history of Monocacy?
Monocacy National Battlefield is a unit of the National Park Service, the site of the Battle of Monocacy in the American Civil War fought on July 9, 1864. The battlefield straddles the Monocacy River southeast of the city of Frederick, Maryland.
04What remains at Monocacy today?
The on-the-ground condition of Monocacy 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 Monocacy?
Here's the honest truth: access to Monocacy 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 Monocacy is roughly 39.3712, -77.3921 — use it as a starting point and cross-reference a current topographic map before leaving pavement.

Sources: account based on Wikipedia (“Monocacy National Battlefield”), CC BY-SA.

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More in Frederick County County

All 2 ghost towns in Frederick County County →