While not usually described as gorges the Philadelphia area contains numerous narrow stream and river valleys which for all practical purposes should be called gorges. Most Philadelphia area gorges are 350 feet or less in depth and have been eroded into erosion resistant metamorphic and sedimentary rocks. Some Philadelphia area gorges now serve as major […]
Category archives for Crum Creek-Ridley Creek divide
Media (Delaware County, PA) is located on the relatively narrow drainage divide between south oriented Crum Creek and south-southeast oriented Ridley Creek. Northeast oriented and barbed tributaries drain to Crum Creek and to Ridley Creek from the west and tributaries to both creeks from the east are oriented in southwest directions. The northeast and southeast […]
North of Media (Delaware County, PA) Crum Creek and Ridley Creek flow in closely spaced southeast oriented valleys and then turn to flow in south-southeast oriented valley. Geist Reservoir is an artificial lake flooding a Crum Creek valley segment. Both Crum Creek and Ridley Creek in this region are joined by northeast and north-northeast oriented […]
Phillylandforms.info 