Nature is full of surprises. Although I’ve seen a relatively good sampling of National Parks in the United States, once again, I was humbled by another phenomenon I had yet to experience… a weeping wall. The Riverside Walk in Zion National Park, Utah is a path that winds along the North Fork Virgin River. As you begin the trail, to the left is the river, with a the steep canyon wall just beyond, to the right, another steep wall. As you continue down the trail, the canyon continues to narrow– ending in another trail, appropriately named, The Narrows. Along the way, I kept looking at the canyon wall to my…