The Maryland town has a snow capped mountain range around the lake. The only mountain range in the state is the Alleghany Mountains which is in the northwestern part and are not snow capped.
Near the end, a person picks up a collapsed power line to shock one of the mutated fish. If someone put their hands on a collapsed power line, they would be electrocuted.
What are the differences between the TV-Version and the R-Rated Version?
A
The R-Rated Version features much more violence than the TV-Version. Here all violent scenes were exchanged with alternate sequences. A detailed comparison between both versions with pictures can be found here.