Just west of Cody, Wyoming, is one of my favorite locations for photographing Rocky Mountain bighorn sheep. In early November all the bighorns in the mountains around Yellowstone National Park come down from the deep snow in the Absaroka/Beartooth Wilderness area. With care, you can approach them as they graze along the Shoshone River. Drive scenic Highway 291 along the South Fork into the foothills to photograph scenic winter scenes, large groups of bighorn sheep and bison.
Photograph America Newsletter issue #108 - Wyoming Bighorn in Winter includes a list of hotels in Cody and recommends the necessary winter gear for this trip.
Notes and images from Bob Hitchman.