That's fairly camouflaged. When I was a kid, I almost stepped on a snake that looked exactly like that. If you're hiking and that sucker is on the trail, it's highly unlikely that you'll see it until you're right over it. In fact, when I was hiking, the two guys in front of me stepped over the rattler, and the snake decided to wake up as I came up on it... scary feeling.
Did you shoot it? If, what type of gun and ammo did you use?
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If you're reading this, it's too late.