Happy Centennial!

They are a ridge-top trail along an old mountain. A path winding perilously down a near-sheer canyon wall. A hot walk through the hoodoos in Bryce.

These are just some of the strolls I've taken in national parks, which celebrate their one hundredth birthday today.

While it's wonderful enough just to glimpse the Grand Canyon or Zion or Yellowstone, it's even better to walk through these places. To inhale the piney air and feel the sting in your calves from trudging up an incline.

National park hikes are some of the most treasured walks I've ever taken. And today I think of them, and of all the protected natural beauty that makes them possible. Happy National Parks Centennial!

(Photo: Wikipedia)