Dogs at Viking? Sorry, that's a no.
We get asked this a lot, and we have given it a lot of thought. In the end, as much as we love dogs, and we have a bunch of them ourselves, we don't love them on our grooming. Even our own dogs don't get to go out on the trails. We spend a lot of time grooming our trails for skiing setting tracks and laying down a nice carpet of corduroy. Our experience shows that dogs don't really get all that jazzed about things like tracks. So, they like to run in them, poop in them and generally don't give much thought to all that hard work. We don't judge, it's a dog thing.
There are trails in the National Forest where you can ski with your dog. You can snowshoe on the Long Trail, just down the road from Bromley. Or there is the West River Trail in South Londonderry. Currently, the only place we know of that grooms trails and also allows dogs is Mountain Meadows Nordic up in Killington. Okemo Valley Nordic no longer allows dogs at their area,