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The Geology of Pennsylvania consists of six distinct physiographic provinces, three of which are subdivided into different sections. Each province has its own economic advantages and geologic hazards and plays an important role in shaping everyday life in the state.
The Pennsylvania Dutch region in south-central Pennsylvania is a favorite for sightseers. The Pennsylvania Dutch, including the Amish, Mennonites, and at least 15 other sects are common in the rural areas around the cities of Lancaster, York, and Harrisburg with smaller populations extending northeast to the Lehigh Valley and up to the Susquehanna Valley.
Called the American Legion Memorial Highway while in Pennsylvania [3] I-83: 50.8: 81.8 I-83 at Maryland border near Shrewsbury: I-81/US 322 in Harrisburg: 1956: current Known as the Veterans of Foreign Wars of the United States Memorial Highway as well as the Harrisburg–York–Baltimore Expressway [3] I-84: 54.55: 87.79 I-81/I-380/US 6 in Dunmore
United States Numbered Highways of the Pennsylvania State Route System; Route markers for U.S. Route 6, ... Union City: 1931: 1935 Now PA 97 (north) US 6N: 28: 45 US ...
The Pennsylvania State Route System was established by the Sproul Road Bill passed in 1911. The system took control of over 4,000 miles of road. The system took control of over 4,000 miles of road. The system of roads continued to grow over the next few decades until continual addition of roads faced greater opposition.
The following is a list of the mapped bedrock units in Pennsylvania. The rocks are listed in stratigraphic order. The rocks are listed in stratigraphic order. [ 1 ]
The Pennsylvania Geological Survey, or Bureau of Topographic and Geologic Survey (BTGS), is a geological survey enacted by the Pennsylvania General Assembly "to serve the citizens of Pennsylvania by collecting, preserving, and disseminating impartial information on the Commonwealth's geology, geologic resources, and topography in order to contribute to the understanding, wise use, and ...
Bureau of Topographic and Geologic Survey, Pennsylvania Department of Conservation and Natural Resources, Harrisburg, Pennsylvania. (Note: having been published in 1959, this reference uses the now obsolete and abandoned classic, Nebraskan, Kansan, and so forth, Midwest glacial terminology.)