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Demon House

2027 dates TBA Very scary

Haunted house in Monongahela, PA. Monongahela, PA

Type: Haunted house
Dates: 2027 dates TBA
Hours: 2026: opened Sep 4
Scare level: Very scary

Guests take a shuttle to a secluded stone mansion for the haunt. The grounds have campfires, covered shelters and an outdoor theater showing horror movies while you wait.

Dates and times can change with weather, so check before you go. Run this event? Claim it to post this year's date, times and photos. Something wrong? Tell us.

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