Northern Spring Salamander

I'm pretty sure this is a Northern Spring Salamander (Gyrinophilus porphyriticus porphyriticus.) Thanks to Zack Cava for the ID. This is one of my local salamanders. They are found along streams and wet areas but seem to only appear briefly at certain times of year -- I suspect they are mating because I seem to find several when they are out and about -- and a week later there will be none at all.