EAGLE CAP WILDERNESS, Ore. – The shovel bites into the earth, propelled by a swift kick from my sturdiest hiking boots. A twist of the handle, and I've dug up a heavy spadeful of earth and random plant life. I carry it a few yards to a dirt-filled trench that, when we arrived, was a beaten-down, unused hiking trail. As a fellow worker plants my "plug," I pause to look through swirling snow at the gray profile of Eagle Cap mountain.