There's the other possibility about an exact location — that there are several Sourwood Mountains. Lord knows there are duplicates of almost every other name in various states. There's a Lookout Mtn., TN and There's a Lookout Mtn. in Montreat, NC and a Point Lookout about 30 miles east of it. So maybe there is a SM in Mass and another (others) in the Appalachians.

david