[Tori]

I'm reasonably sure that it is a northern water snake. The markings are identical and the head varies a bit. Your's head still has a bit of the arrow shape if you look close. I've seen garters that didn't look like garters because of their thickness or the shape of the head looked wrong, but they were still garters (even without the stripe and being overweight). Anyone else have an opinion?
nerodia sipedon - Live Search Images