For Northwest Trek guests, the Keeper Adventure Tour through the Free-Roaming Area is a mix of off-road thrills and up-close animals. But for keeper Deanna Edwards, it’s a way to share a passion for wildlife – combined with friendliness, unflagging animal care and some serious driving skills. “I’m always doing new things, like this track here,” she says, gunning the tour jeep up a muddy track into a perfect three-point-turn. “That’s one of the great things about the Free-Roaming Area. I’m also in keeper mode, playing Where’s Waldo with the animals and making sure they’re all okay. But what I …