Ghost Town USA

Ghost Town · Montana

Keystone

A ghost town of unknown status in Mineral County County, Montana.

By the Ghost Town USA research team · Last reviewed September 2026

Keystone ghost town, Montana
Photo: cmglee, Meclee, Flappiefh, Lokal_Profil et al. (CC BY-SA 4.0) via Wikimedia Commons

Quick Facts

State
Montana
Status
Unknown Status
Access
Unknown Access
Coordinates
Not recorded

Some places earn their silence — and Keystone is one of them. The Keystone Pipeline System is an oil pipeline system in Canada and the United States, commissioned in 2010 by TransCanada (later TC Energy).

Mineral County County holds 4 documented ghost towns, including Pardee, Quartz, Taft — Keystone keeps them company on the map.

The story of Keystone

Montana's ghost towns span gold-rush gulches and the great homestead bust that emptied the Hi-Line.

The Keystone Pipeline System is an oil pipeline system in Canada and the United States, commissioned in 2010 by TransCanada (later TC Energy). It is owned by South Bow, since TC Energy's spin off of its liquids business into a separate publicly traded company, effective October 1, 2024. It runs from the Western Canadian Sedimentary Basin in Alberta to refineries in Illinois and Texas, and also to oil tank farms and an oil pipeline distribution center in Cushing, Oklahoma. TransCanada Keystone Pipeline GP Ltd, abbreviated here as Keystone, operates four phases of the project.

What you'll find today

The on-the-ground condition of Keystone 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.

Getting there

Here's the honest truth: access to Keystone 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.

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.

Keystone FAQs

Where is Keystone located?
Keystone is in Mineral County County, Montana. Precise coordinates aren't on record, so research maps and local directions before you go.
What county is Keystone in?
Keystone sits in Mineral County County, Montana. See our full guide to ghost towns in Mineral County County for its neighbors.
What is the history of Keystone?
The Keystone Pipeline System is an oil pipeline system in Canada and the United States, commissioned in 2010 by TransCanada (later TC Energy).
What remains at Keystone today?
The on-the-ground condition of Keystone 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.
Can you visit Keystone?
Here's the honest truth: access to Keystone 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.

Sources: description based on Wikipedia (“Keystone Pipeline”), CC BY-SA.

More Ghost Towns in Mineral County County

See all 4 ghost towns in Mineral County County, Montana