Old Idaho Penitentiary
A territorial-era prison complex of sandstone cell houses, walls, yards, and exhibits spanning more than a century of confinement.
DocumentedTicketedFee or pass1 to 3 hoursChecked July 2026
Mountain West · 1 field file
Current field files in Idaho.
The Atlas is curated, not exhaustive. These are the sourced files in Idaho in Volume 01, each with its own access status, evidence label, and check date. Nothing here is statewide travel advice.
- Category coverage
- Public-access summary
- Old Idaho Penitentiary: State historic site.
- Last content review
- Catalog reviewed July 2026. Each file carries its own source-check date. Conditions change; check the primary source before traveling.
Field files
Across the line
Files in other states within 200 straight-line miles of a Idaho file. Distances are not drive distances.
Pendleton Underground
A guided route through spaces beneath downtown Pendleton, presented by a nonprofit tour organization founded in 1989.
History + folkloreReservation requiredTicketedAbout 90 minutesChecked July 2026
Official sources used in Idaho
Also in Mountain West: Colorado, Montana, Nevada, Utah, Wyoming.