Every night, Deb and I take our dog, Nellie, on a walk around the perimeter of the Essen Wildlife Refuge. This evening, she was off-leash and started barking at something—and her bark was more protective than usual. I put her on a leash and investigated, expecting to find a moose or racoon. Instead, she had treed this gorgeous mountain lion! I’ve photographed mountain lions before with motion-sensing cameras, but never in person. Yay Nellie!