Beautiful photos, especially the snake. Looks to me like a garter snake, maybe a checkered garter snake. Or a bull or gopher snake. Both non venomous. If I saw a snake in the wild, I did they were harmless water snakes, and didn't know if it were venomous or not I'd treat it as if it were. Freeze and try and get some distance to it. They'll very likely skedaddle but who knows. I wouldn't want to tempt it.