The phone cell tower is located at the top of the mountain near where this old, partial skeleton was found, but there's no proof it has anything to do with Abby's disappearance. There's no proof that Abby was at/on the mountain where the cell tower is; phones can ping off of towers that are miles away. There aren't many cell towers in that area, so most people's phones in North Conway probably ping off that same tower.
There are literally hundreds of miles of hiking trails and ski trails within a few miles of where those old bones were found, so it's entirely possible that they could be the bones of a hiker who got lost or had a medical problem and died several years ago, and no one found the remains until now. The terrain is very rough and rocky and there's a lot of trees/brush. Hikers don't always tell people where they're going, so it's possible this person's family and friends had no idea where he/she'd gone that day.
It's my opinion that Abby and these partial remains likely have nothing to do with each other.
