I've captured a snake, and am not sure what it is. I suspect its a yellow/green rat snake, but I dont think they are in my area. I found the snake under a box in an open field in Pierre, SD. It's a tan color w/ a greenish tint, and no pattern. The underside is white. The snake is about a foot long, and the head/face is similar to that of a garter snake. The reptile also released the familar garder snake scent when captured. Can anybody help?

