It consists of a number of interesting effects, which are gravity hill optical illusions, but which the attraction's proprietors propose are the result of paranormal properties of the area.

[4] The story goes that a gold assay office was built in the area in 1904 by the Old Grey Eagle Mining Company, which slid from its foundation in the early tens, coming to rest at an odd angle.

[1] When the very similar Mystery Spot was created in Santa Cruz, California in 1939, Litster sued for copyright violations, but withdrew the suit when it was pointed out that he claimed the Oregon Vortex was a natural phenomenon.

The Coopers' daughter Maria and grandson Mark kept the attraction open since then, making it one of Oregon's oldest examples of roadside americana.

[10] The Oregon site also exhibits phenomena similar to those perceived by visitors at the mystery spot located outside St. Ignace in the upper peninsula of Michigan.