Wednesday, May 18, 2011

Drumlin Ridges on Mountainside

East side of Stewart Mountain from the South Fork Nooksack Valley

I took the picture above while investigating a riparian area on the South Fork Nooksack River. I liked the way the sun was lighting up the tops of the trees not only on the stand of poplars but on the slope behind. The step-like ridges on the mountain slope are glacial carved drumlin features on the side slope of the valley. Normally they are difficult to discern, but with light just right as when this picture was taken I can make out nine drumlin ridges formed by passage of ice from the right to the left.

LiDAR view of area. Image is approximately 2 miles across.

1 comment: