<p>A bicyclist travels a sandy trail in back of Camel's Back Park in Boise, Idaho, Oct. 8, 2013. Because of the geology of the Boise Foothills and the Owyhees, with sandy and granitic soils in some areas, you can find trails and drainages that can be hiked and biked throughout winter. (AP Photo/The Idaho Statesman, Pete Zimowsky)</p>

November 6, 2013