Been following this thread since the beginning (I was dancing in VT and hiking in MA at the time of the disappearance). I have been in Maine since August 1st and was just at the Perham Stream trail crossing this morning. I have been contacted by one of Gerry's hiking partners and have provided some information to the Maine Warden Service. It appears that Gerry was last seen at Poplar Ridge LT where she camped and set out early in the morning heading north towards Spaulding Mt. LT. So, she disappeared between Poplar Ridge LT and Rt.27. In my opinion, the environmental reasons would be the fords at Orbeton Stream and the Carrabassett River or having a bad fall while descending the steep cirque slope on the side of Sugarloaf. In my opinion, human reasons would be the number of non-hikers that frequent the Oberton Canyon/Perham Stream/Mt. Abrams side trail area due to the numerous logging roads/ATV access points in this area, and perhaps the Caribou Pond/Valley Rd. before the climb up South Crocker. The valid reason why she disappeared won't be known until she is found, if she is found.