Yep, that's definitely a Pygmy, although as others have said, it's massive for a Pygmy. Most of the ones I've seen were about a foot long or smaller.
I caught dozens of these in Florida years & years ago. They have an Attitude and a very quick, albeit short strike, but the biggest problem is that tiny rattle sounds more like an insect than it does that Diamondback in the Hollywood westerns.
All in all though, and except for someone in Brent's position, I think MLeake nailed it. While in snake country, you really need to look before placing hands and feet. Little things like stepping ON a log and looking down, and not just stepping over it can prevent a boatload of misery.
As for dogs, there are trainers that effectively teach dogs snake avoidance. Horses, contrary to popular belief, aren't naturally afraid of snakes, and when they get bitten, it's usually on the nose. They're big enough that the venom usually isn't a problem systemically, but the swelling of the nose area can shut off breathing
.