The Copan River on a direct line into the acropolis construction as seen from standing on Structure 20 along the top edge of the cut. The river's undercutting action is what caused these sections of the ruins to collapse and be swept away. PM 2004.24.177
The Copan River on a direct line into the acropolis construction as seen from standing on Structure 20 along the top edge of the cut. The river's undercutting action is what caused these sections of the ruins to collapse and be swept away. PM 2004.24.177
