A trip to a popular swimming spot in New York took a frightening turn when a dog was swept over a waterfall, and the woman who jumped in after it also became stranded on a ledge. Both were ultimately pulled to safety after a complicated rescue involving multiple emergency teams and an 80-foot haul up a steep ravine. What happened? Several rescue agencies converged on Fawn's Leap in Hunter, New York, around 7 p.m. on Thursday, July 9, after repor…