Yellowstone in snow

Ever since we started going to Yellowstone, Lindsay has wanted to visit in winter. Fred from Seattle suggested that we look at snow mobile tours. There are a some from the west entrance and two from the north entrance. As we planned to camp in Mammoth campground, we chose the private company Yellowstone Year-Round Safaris as opposed to Xanterra who run all the government campgrounds. They run out of Gardiner and have two tours, one to Old Faithful and one to Canyon, we wanted to go to Canyon which goes down the right hand side of Yellowstone. The last tour available when we rang was on the 27th February, so we made sure we got there a couple of days beforehand so that we could get over our travelling and therefore enjoy the experience more. Mammoth Campground When we arrived into the Mammoth campground, there was no-one else there. Surprise surprise. Only one block of restrooms were open, so we chose a campsite close to them as we had drained our fresh water tank and winteri...