I have flown for hours and hours exploring the hillsides and glaciers flowing from the flanks of Mt. Spurr, an active volcano 90 miles in the wilderness. A year after I moved to Anchorage, it erupted, showering the town with ash and shutting down air travel for days. One day while flying In the vicinity of a glacier on its flanks, I discovered a unique landscape I have seen nowhere else. Formed by an ancient eruption of the volcano and carved through the millennia by torrents of water, it looked like Mother Nature’s secret golf course. I landed the helicopter on a ridge high above and put a hiker on the landscape to show its mind-boggling scale. This image is available both with and without the hiker.