Onsted, Michigan: Mystery Hill

A strange vortex where gravity goes haywire and tennis balls roll uphill. Open as an attraction since the late 1950s. Large vintage arrow sign out front promises "The Amazing Force of Gravity."
7611 US Hwy 12, Onsted, MI
Across from the entrance to Hayes State Park. On the south side of US Hwy 12; turn south at the sign onto Boardman Drive.
Memorial-Labor day Tu-Su 11-?, M closed. (Call to verify) Local health policies may affect hours and access.
Adults $8, Kids $7, under 3 free.
RA Rates:
Worth a Detour
Save to My Sights

Visitor Tips and News About Mystery Hill

Reports and tips from RoadsideAmerica.com visitors and Roadside America mobile tipsters. Some tips may not be verified. Submit your own tip.

Mystery Hill

Mystery Hill is another Mystery Spot where gravity is defied and water runs uphill. It's been there since at least the 1950's...

[Ed Gallagher, 05/29/2006]
Mystery Hill, Bunyan, Covered Wagon

Besides Prehistoric Forest, which was sold, but has remained in operation, is "Mystery Hill" about a half mile east of Prehistoric Forest on U.S. 12; a Paul Bunyan statue at Stagecoach Stop U.S.A., a wild west theme park a couple of miles further east; a derby-wearing cow on top of the Golden Nugget Saloon, across the road from Paul Bunyan; President Eisenhower's official Presidential train car at Stagecoach Stop; a very unique Catholic Shrine at St. Joseph Catholic Church, west on U.S. 12. This shrine was built of concrete resembling wood, stone, rope, thatch and other natural materials. It was built by mexican artisans during the thirties. Also nearby are the twin "Irish Hills Towers" a pair of observation towers at the highest point in the Irish Hills. There is also a neat little drive-in that is now closed, but it is still standing: "The Sauk Trail Chuckwagon". This is built to look like a covered wagon. The Irish Hills are located about sixty miles west of Detroit on U.S. 12 on the way to Chicago.

[Rob Burg, 04/05/1998]

Nearby Offbeat Places

Ike's Train Car of TerrorIke's Train Car of Terror, Onsted, MI - < 1 mi.
St. Joseph's Shrine - Fake Wood SculpturesSt. Joseph's Shrine - Fake Wood Sculptures, Brooklyn, MI - 1 mi.
An Gorta Mor - Potato Famine MemorialAn Gorta Mor - Potato Famine Memorial, Brooklyn, MI - 1 mi.
In the region:
Dum-Dums Lollipop Factory Tour, Bryan, OH - 45 mi.

Latest Tips Across Roadside America

Catch up on the latest discoveries from the road.

Explore Thousands of Oddball Tourist Attractions!

Unique destinations in the U.S. and Canada are our special obsession. Use our attraction recommendation and maps to plan your next road trip.

September 20, 2020

My Sights

My Sights

Create Your Own Bizarre Road Trips!

Try My Sights

Roadside America app
Roadside Presidents app

Michigan Latest Tips and Stories

Latest Visitor Tips

Sight of the Week

Sight of the Week

Bedrock City and Raptor Ranch, Williams, Arizona (Sep 14-20, 2020)

SotW Archive

USA and Canada Tips and Stories

More Sightings

Sightings. Arrives without warning. Leaves no burn marks. A free newsletter from RoadsideAmerica.com. Subscribe now!
RoadsideAmerica.com Hotel & Motel Finder

Special rates for hotels.

Nearby Hotels: Onsted, Michigan

Nightly rates found:

Book Now