I reached the high desert of New Mexico where I am hoping I can finally find a rattlesnake den.

But not just any den, I want one full of deadly western diamondbacks, the snake that causes the most bites in North America.

As if that isn't enough, I'm also going to confront my greatest fear.

I'm claustrophobic, small dark tunnels send me into a panic.

But that's exactly where the diamondbacks will be.

That's the sort of thing I'm looking for. This is more like it.

That's more like it. I can actually get inside here.

Wow!

It's getting narrow and dark.

I can't even see inside.