The Sentinel — Framed PieceA lone White Pine on a Shield promontory the tree shaped by decades of prevailing wind, leaning slightly, the branches on the windward side stripped and dead while the leeward side still holds its dark green needles. This is the sentinel tree of the Canadian Shield: standing apart from the forest, shaped by exposure, enduring. Glen gave it the full complexity of a portrait subject the specific character of this particular pine, not a generic tree. The