Ghost Town USA

Ghost Town · California

Temescal

A ghost town of unknown status in Riverside County, California.

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

Temescal ghost town, California
Photo: user:Lagringa (Public domain) via Wikimedia Commons

Quick Facts

Status
Unknown Status
Access
Unknown Access
Coordinates
Not recorded

If walls could talk, Temescal would never shut up. Lucky for visitors, they mostly just stand there. Temescal Regional Recreation Area (TRRA), formerly Lake Temescal Regional Park, is a regional park in the Berkeley Hills, in northeastern Oakland, California.

Riverside County holds 10 documented ghost towns, including Eagle Mountain, Leon, Linda Rosa — Temescal keeps them company on the map.

The story of Temescal

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

Temescal Regional Recreation Area (TRRA), formerly Lake Temescal Regional Park, is a regional park in the Berkeley Hills, in northeastern Oakland, California. The TRRA encompasses 48 acres (19 ha), abutting SR 24, SR13, and the interchange connecting the two highways, southwest of the Caldecott Tunnel.The park is part of the East Bay Regional Park District (EBRPD).

What you'll find today

The on-the-ground condition of Temescal 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 Temescal 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.

Temescal FAQs

Where is Temescal located?
Temescal is in Riverside County, California. Precise coordinates aren't on record, so research maps and local directions before you go.
What county is Temescal in?
Temescal sits in Riverside County, California. See our full guide to ghost towns in Riverside County for its neighbors.
What is the history of Temescal?
Temescal Regional Recreation Area (TRRA), formerly Lake Temescal Regional Park, is a regional park in the Berkeley Hills, in northeastern Oakland, California.
What remains at Temescal today?
The on-the-ground condition of Temescal 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 Temescal?
Here's the honest truth: access to Temescal 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 (“Temescal Regional Recreational Area”), CC BY-SA.

More Ghost Towns in Riverside County

See all 10 ghost towns in Riverside County, California