Well behaved and leashed pets are allowed in the backcountry ski and snowshoeing area and they are also welcome around (but not in) the base area of the mountain.
As always, please bring appropriate clean up materials and plenty of water for both of you. You may also want to give some consideration to an appointment with your vet prior to your visit to discuss preventative actions you can take to protect your pets paws from extended exposure to the cold.