As I alluded to earlier, I may not sleep tonight, due to snakes, and that picture is not helping. I hate those things. Twas clawing my way up a steep rocky slope after elk, in 2011 or so, with my youngest just behind me, and about stuck my nose into one near the top a bit after daylight. He was lethargic, never rattled, but he did move a bit, I saw the movement, waaaay to close. I nearly launched myself off the slope with a half gainer and three full twists, but managed to hang on. After the elk did not follow the pattern we had scouted, possibly due to all the noise earlier, rocks falling n such, I summoned my bravery, found the offending serpent and made sure he would trouble us no more.
Did I say I hate rattle snakes? I actually prefer Grizzly country vs where rattle snakes are thick.