Western black-necked garter snake

Thank you for all the suggestions I think I've found a match, the western black necked garter snake: http://www.123rf.com/photo_7209979_a-wes...

I'm thinking I can possibly just make out a rostral (nose) scale indicative of patchnose snakes, Although I'm not sure on the specific species. Other striped snakes that look similar would be garter snakes and ribbon snakes if you wish to look into that but my bet would be that it was a type of patchnose.