(Multnomah Falls, OR) -- Police are warning residents about fake money being littered near Multnomah Falls. The U.S. Forest Service says there have been instances of hikers risking their lives going off-trail near the falls to recover what looked like 100-dollar bills on a dangerous hillside. On Saturday, Portland Mountain Rescue rappelled down the cliff to recover the cash that turned out to be money used as a prop in a movie. There were 15 bills about 30 feet over the edge of the falls. They don't know whether it's connected to social media posts where influencers stash money in dangerous outdoor places where people can find it.