It was another beautiful day in Yellowstone. We began at the lower elevation and much less chilly Mammoth Hot Springs campground. Theresa has had her eye on a hike up Specimen Ridge for a while, to see petrified forests and fossils. We headed toward the Roosevelt Tower area, on the road to the Northeast entrance, to find the trailhead. The northeast section of the park has few, if any, thermal features (what we in the know call geysers and hot springs) and has more open plains and glacier carved rolling rounded hills. We stopped at the "Specimen" pull out and began our little hike, and found out pretty quickly (at the area map a little way up the trail) that it was actually a twenty mile round trip. This was a little more than we had bargained for in a day hike and we settled for an alternate trek up a nearby ridge. The view was spectacular and it was nice to get in a second day of hiking.We climbed back into the bus and continued out across the Lamar Flats, where we saw four herd of Bison and quite a few strays. On the recommendation of the park ranger at Mammoth Hot Springs, rather than head to Cody as we had planned, we headed over the 11,000 foot Beartooth Pass. With the northeast entrance at around 8,000 feet, it was a pretty steep climb and very windy toward the top. The bus puttered along like a trooper and the scenery looked like all of those Westward Expansion paintings. On the top, rain turned to snow and then to hail. Right over the top was the steepest pomalift/t-bar run we have ever seen, with a parking lot of snowboarders keeping it busy. We continued down on through Red Lodge and into Billings, securing a spot for the evening at the very nice Billings KOA, which turns out to be the first KOA in North America. Brian made some calls and found a local mechanic that works on air cooled VWs to take a look at the bus's noisy posterior and scheduled an appointment for tomorrow morning.