It seems not a week goes by without some dire issue being identified as a threat to the national parks. One week it might be funding woes, another week pollution, another diversity concerns, and then, of course, there's climate change.

During my recent hike in Shenandoah National Park along the Appalachian Trail, I came upon a tight crook in the trail that carried Ivy Creek downhill amid a flurry of gold, red, orange and yellow leaves of fall. There can be no more spectacular setting that the hardwood forests of the East. Unless it's set ablaze by the pastel daubs of spring wildflowers in places such as Glacier, Saquaro or Canyonlands national parks.

Fall is a spectacular season to hike in Shenandoah National Park. Reds, golds, greens and browns are dappling the hillsides, deer are on the move, and, if your timing is excellent, bears are falling from the trees and Mennonite women are backpacking along the Appalachian Trail.