According to the locals, a gold assay office built in the area in 1904 slid from its foundation in the early teens, coming to rest at an odd angle. Odd angles seem to create an illusion of objects seemingly rolling uphill. The same effect can be seen in The Montana Vortex and house of mystery, Pennsylvania'sLaurel Caverns, and at Santa Cruz, California's Mystery Spot. Oregon Vortex is also famous for "height change" as the relative height of the two people changes varying on where they stand. Most people believe this effect happens due to a distorted background which results in a forced perspective, as with an Ames room. It also shares similar properties with the mystery spot located outside St.Ignace in the upper peninsula of Michigan.
This article is in a list format that may be better presented using prose.You can help by converting this article to prose, if appropriate. Editing help is available.(September 2015)
The site was investigated on a second season episode of the SyFyreality showFact or Faked: Paranormal Files, and although there seemed to be a small debate between the show's investigators over the "height change" phenomenon, they ultimately concluded that overall, all of the effects demonstrated were optical illusions.
It may also be the inspiration for the setting of the Disney Channel show "Gravity Falls."
Moreover, it is alluded to by one of the places that can be visited in the game Sam & Max Hit the Road. One of the locations that can be visited in the game is called Mystery Vortex and is located roughly at the position of the Oregon Vortex on the in-game map of the United States.
In The X-Files an "Oregon Vortex" is mentioned during the season seven episode number five "Rush".
If you look up "Gravity Falls, Oregon" on Google Earth it would lead you to this place.