Desc: Winter and Christmas in America's National Parks: With Bjorn Anderson, Colby Anton, Joan Anzelmo, Jan Balsom. It is Christmastime in America's national parks. Yosemite, Yellowstone, Grand Teton, and Grand Canyon National Parks each offers Christmas visitors their own unique versions of comfort, joy, and the warmth of vintage lodges during the holiday season. The festive activities and gatherings that arise within these parks at this time of year are sure to add abundant cheer to your holiday celebration.