Bishop, California, Lake Sabrina & Glacial Features Explained | Out in the Field with Jeremy Patrich

Join me on an adventure, ‘Out in the Field’ just outside of Bishop California, where we can experience Fall colors, and a stunning glaciated topography!

Lake Sabrina is a lake created by damming the middle fork of Bishop Creek. It is located south-west of Bishop, California on California State Route 168, in the Inyo National Forest. It has a cafe as well as a dock. The dam was built in 1907-8 to supply a constant flow of water to the hydraulic power plants. The lake is part of the Bishop Creek system.

As the glaciers expand, due to their accumulating weight of snow and ice they crush and abrade and scour surfaces such as rocks and bedrock. The resulting erosional landforms include striations, cirques, glacial horns, arêtes, trim lines, U-shaped valleys, roches moutonnées, over deepening and hanging valleys.

Later, when the glaciers retreated leaving behind their freight of crushed rock and sand (glacial drift), they created characteristic depositional landforms. Examples include glacial moraines, eskers, and kames. Drumlins and ribbed moraines are also landforms left behind by retreating glaciers. The stone walls of New England contain many glacial erratics, rocks that were dragged by a glacier many miles from their bedrock origin.

Lakes and ponds may also be caused by glacial movement. Kettle lakes form when a retreating glacier leaves behind an underground or surface chunk of ice that later melts to form a depression containing water. Moraine-dammed lakes occur when glacial debris dam a stream (or snow runoff).

Geographic Features Observed: Cirques, Aretes, Moraines, Tarns, Horns

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Access the Free OER Physical Geography Textbook Here:
https://drive.google.com/drive/folders/1prHnOB77NSpjZwYkOqx-oYWF2NpqS0HG

#Geography, #Fall, #Bishop