The rolling plains and scattered wetlands of Ninepipe National Wildlife Refuge in Montana were created by receding glaciers more than 12,000 years ago. Today, these lands and waters serve as habitat for a great variety of wildlife, especially migrating waterfowl. Depending on the season, the sky can hold a lone eagle, fill with waves of tundra swans or show dramatic sunset colors. Photo by Christal Steele (www.sharetheexperience.org).