West Manheim Township
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West Manheim Township One of the few good exposures of the Marburg formation is found along Grand Valley Road near Long Arm Dam. The Marburg formation is composed of schists and quartzites and is a member of a complex large metamorphic terrain in southern York County. The rock originated as sediment of an ancient ocean known as the Iapetus Sea that covered this area during the Early Paleozoic.


West Manheim Township Ground water is a valuable resource. Many households rely on groundwater for their domestic use. This township made a wise decision in 2005 by having a groundwater survey conducted to see if rapid growth in development will affect the groundwater system.


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