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Monroe Border Fault
The Monroe Border Fault illustrates an episode of orogenic compression in which Precambrian rocks were thrust northward over lower Paleozoic deposits.
Location: Bucks County, PA
Year designated: 1980
Ownership: State, Private
Please remember, National Natural Landmarks (NNLs) are not national parks. NNL status does not indicate public ownership, and many sites are not open for visitation.
Last Updated: June 28, 2012