As my skiff floated along the shoreline at Wood Spit, I noticed a group of boulders rising out of the earth that seemed to be shaped like projectiles. They are welded together by time and nature, and are clothed in a sprinkling of lichen. The setting sun warms the boulders, and bathes them in golden hues. They may be only a group of rocks, yet they symbolize the ice age environment that ended more than ten thousand years ago.