Introduction: Sandy Run is an interesting secondary drainage route as it drains the Chester Valley east end (also known as the Roslyn Valley) in a west-southwest direction, but instead of continuing a short distance further on the Chester Valley floor to join south oriented Wissahickon Creek, it turns in a north direction to flow through […]
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The Dresher-Pennypack Creek Through valley extends in a northeast direction from Dresher to the Pennypack Creek valley between Fulmor and Heaton and is today used by the Pennsylvania Turnpike and a Norfolk Southern freight rail line to cross the Pennypack Creek-Wissahickon Creek drainage divide. The through valley floor elevation at that drainage divide is between […]
Sandy Run originates in Roslyn and flows in a west direction along the Camp Hill ridge south flank or the Whitemarsh Valley north side toward the south oriented Wissahickon Creek, but instead of continuing in a west direction Sandy Run turns abruptly at the Sandy Run Elbow of Capture to flow in a north direction […]
Two adjacent water gaps can be seen just south of Fort Washington. The first, the Wissahickon Water Gap, is where Wissahickon Creek flows in a south direction between Fort Hill (east) and Militia Hill (west). The second, the Sandy Run Water Gap, is where Sandy Run turns from flowing in a west direction to flow […]
