Fort Stevens + Peter Iredale
A former coastal-defense fort paired with the rusting remains of the Peter Iredale shipwreck on the edge of the Graveyard of the Pacific.
DocumentedPublicCheck the source2 to 5 hoursChecked July 2026
Pacific Northwest and California · 4 field files
Current field files in Oregon.
The Atlas is curated, not exhaustive. These are the sourced files in Oregon 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
- Fort Stevens + Peter Iredale: State park. OSH Museum of Mental Health: Museum hours. Pendleton Underground: Reservation required. Stone House, Witch's Castle: Public hiking trail.
- 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
OSH Museum of Mental Health
A museum inside the Oregon State Hospital's Kirkbride Building that confronts the institution's history and the changing treatment of mental illness.
DocumentedTicketedFee or pass1 to 2 hoursChecked July 2026Pendleton Underground
A guided route through spaces beneath downtown Pendleton, presented by a nonprofit tour organization founded in 1989.
History + folkloreReservation requiredTicketedAbout 90 minutesChecked July 2026Stone House, Witch's Castle
A roofless stone park shelter hidden in a forest ravine, widely nicknamed the Witch's Castle despite its much less supernatural origin.
History + folklorePublicFree1 to 2 hoursChecked July 2026
Across the line
Files in other states within 200 straight-line miles of a Oregon file. Distances are not drive distances.
Ape Cave
The longest lava tube in the continental United States, formed by an eruption roughly two millennia ago beneath what is now Mount St. Helens country.
DocumentedReservation requiredFee or pass1 to 4 hoursChecked July 2026Maryhill Stonehenge
A full-scale concrete Stonehenge replica completed in 1929 as a memorial to Klickitat County service members killed in World War I.
DocumentedPublicFree45 to 90 minutesChecked July 2026Georgetown Steam Plant
A 1906 industrial cathedral of turbines, catwalks, brick, and steel that helped prove steam power could feed a fast-growing city.
DocumentedScheduled daysFree1 to 2 hoursChecked July 2026Seattle Underground
Buried storefronts and sidewalks left below Pioneer Square after Seattle rebuilt above its old street level following the Great Fire of 1889.
DocumentedGuided onlyTicketed75 minutesChecked July 2026Bigfoot of Washington
Washington's forests sit at the center of a long-running Bigfoot tradition, with modern reports describing a tall, hair-covered figure moving upright.
Folklore + reportsPublicFree1 to 3 hoursChecked July 2026Fort Worden Batteries
Concrete gun batteries, dark corridors, and empty emplacements built to guard the entrance to Puget Sound from the late 1890s onward.
DocumentedPublicFee or pass2 to 5 hoursChecked July 2026
Official sources used in Oregon
- Oregon State Parksstateparks.oregon.gov , opens government source in a new tab
- OSH Museum of Mental Healthoshmuseum.org , opens institutional source in a new tab
- Pendleton Underground Tourspendletonundergroundtours.org , opens official site operator in a new tab
- Forest Park Conservancyforestparkconservancy.org , opens institutional source in a new tab
Also in Pacific Northwest and California: California, Washington.