Esker

Esker: Imagine a glacier, preferably a very large glacier such as during one of the great ice ages. A glacier isn't a uniform sheet of ice. It might have cracks and bubbles, even tunnels. As the glacier moves, it scrapes and stirs up the land beneath it. One of the more interesting possibilities is when one of these tunnels, it could be quite long, fills with gravel. Eventually the glacier melts and leaves a memento of this gravel-filled tunnel, a long ridge of gravel. This is called an esker.

The [grave] site was a flattened patch of ancient glacial esker where tall red pines grew straight as masts and there wasn't much ground cover, other than a warm, fragrant bed of pine needles.

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