"I saw the snake as soon as she did and I yelled at her (making her freeze) before she had much time to think about it."
Wise call, Craig. For a dog that size, no matter how feisty, the first mistake is probably going to be the last.
She probably wouldn't fare well with Ol' Wiley either. That canyon scene has to be a little weird, I'd think. I can just see their eyes glowing in your flashlight beam. I ran into about a half dozen of them one time solo up in Wright Lakes Basin, in broad daylight, and that was a mind concentrating moment for me. They left me alone, but for a brief moment I wasn't so sure how things were going to turn out, and my gut got real cold. Running into them at night when you're basically chumming them in with a small dog is probably even more so. Sort of like surfing and Great Whites? ;0)