Pinedale Skiing - Information about areas in and around Pinedale, Wyoming. 60 km of marked groomed trails. - http://www.pinedaleonline.com/Skiing.HTM#x-country
Backcountry X-C Ski Tours in Yellowstone National Park - Experience a true Yellowstone winter at a XC skier's pace from their yurt camp. Explore the Yellowstone backcountry with certified guides. Multiday XC excursions are based from the comfortable Canyon Skier's Camp. - http://www.yellowstoneonline.com/yellowstoneexpeditions/