The Puget Sound is a sorrowful sea that’s separated from the Pacific Ocean by the Olympic Mountains to the west.
The large body of water lies above the tectonically active edge of North America. Glaciers occupied the Sound during the last ice age, advancing from the north. When they retreated some 13,000 years ago they left behind large deposits of interglacial sediment. These deposits in turn were carved by frequent rain and sea erosion to form high, unstable coastal bluffs, which were soon covered by a dense blanket of cedar, hemlock, maple, alder and fir.
As erosion progresses these trees slide down high bluffs in slow cascades that often take decades to complete from hilltop to shore. The process is sped up when the northwest rains are heaviest. Landslides can carry trees, sedimental clay and underbrush to the beach in an instant. Once they’ve settled on the shore the floral detritus enters the marine ecosystem, where it functions as nutrient, shelter and barrier.
The large body of water lies above the tectonically active edge of North America. Glaciers occupied the Sound during the last ice age, advancing from the north. When they retreated some 13,000 years ago they left behind large deposits of interglacial sediment. These deposits in turn were carved by frequent rain and sea erosion to form high, unstable coastal bluffs, which were soon covered by a dense blanket of cedar, hemlock, maple, alder and fir.
As erosion progresses these trees slide down high bluffs in slow cascades that often take decades to complete from hilltop to shore. The process is sped up when the northwest rains are heaviest. Landslides can carry trees, sedimental clay and underbrush to the beach in an instant. Once they’ve settled on the shore the floral detritus enters the marine ecosystem, where it functions as nutrient, shelter and barrier.