Treading Thru the National Parks

My goal is to hike the trails in every National Park site in the United States and then share the videos with those of you who would like to watch them as you walk or run on your treadmill. There are currently 425 sites of which 63 are considered National Parks. The others are designated as National Historic Sites, Monuments, etc. I hope to accomplish this goal over a span of 15 years.