Mountain House

California wrote the book on ghost towns, from Gold Rush tent cities to Owens Valley farm towns the aqueduct dried up.

Mountain House is a city on the western edge of San Joaquin County, California, United States, lying just east of the historical waystop Mountain House in Alameda County. The planned community was originally approved by the San Joaquin County Board of Supervisors in 1994 and construction was officially started in 2001. Mountain House was then incorporated in 2024. As of the 2020 census, when Mountain House was still classified as a census-designated place, the population was 24,499.

The on-the-ground condition of Mountain House 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.

Here's the honest truth: access to Mountain House 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 Mountain House is roughly 37.7739, -121.5442 — use it as a starting point and cross-reference a current topographic map before leaving pavement.

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.