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The Wissahickon Formation is a mapped bedrock unit in Pennsylvania, New Jersey, and Delaware. It is named for the Wissahickon gorge in Fairmount Park, Philadelphia. In Maryland formations, the term "Wissahickon" is no longer used. Rocks in this classification have since been divided into several units, such as Lower Pelitic Schist and Prettyboy ...
Three-story buildings, they are brick structures that sit on Wissahickon schist foundations and feature projecting arched center entrances and multiple porch levels. [ 2 ] It was added to the National Register of Historic Places in 1985.
The Elkins Estate is a 42-acre (170,000 m 2) estate located in Elkins Park, Pennsylvania, ... The first floor of the house is built of local Wissahickon schist, ...
The Old Main building is four-stories high with a stucco and Wissahickon schist stone exterior. It has a two-pitched roof with a central grand pediment and two minor flanking pediments. Atop the grand pediment is a unique "dome" structure and atop both minor pediments are matching cupola.
United States historic place Cliveden U.S. National Register of Historic Places U.S. National Historic Landmark U.S. National Historic Landmark District Contributing Property Location 6401 Germantown Avenue Germantown, Philadelphia, Pennsylvania, U.S. Coordinates 40°02′46″N 75°10′56″W / 40.0461°N 75.1822°W / 40.0461; -75.1822 Area 5.4 acres (2.2 ha) Built 1767 Built by ...
The house is made from cut and squared Wissahickon schist, [2] and is located on Stenton Avenue, which borders Wyndmoor and the Chestnut Hill area of Philadelphia. The original property was owned by Hannah Callowhill Penn. [3] She was the second wife of William Penn, the first colonial proprietor of the Province of Pennsylvania. After her ...
The small building has one-and-a-half stories and measures 28 feet 3 inches (8.61 m) across the front, and 18 feet 3 inches (5.56 m) along the sides. A brick el in the rear was added after a 1915 restoration. The four-bay front is constructed of Wissahickon schist ashlar, and the sides of stuccoed rubble
Wissahickon Creek is a tributary of the Schuylkill River in Montgomery and Philadelphia Counties, Pennsylvania. [ 1 ] Wissahickon Creek rises in Montgomery County, runs approximately 23 miles (37 km) passing through and dividing Northwest Philadelphia before emptying into the Schuylkill River at Philadelphia .