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〕 |elevation_m = |elevation_ft = 561 |postal_code_type = ZIP code |postal_code = 17745 |area_code = 570; Exchanges: 484,748,893 |blank_name = |blank_info = |blank1_name = |blank1_info = |website = |footnotes = }} The city of Lock Haven is the county seat of Clinton County, in the U.S. state of Pennsylvania. Located near the confluence of the West Branch Susquehanna River and Bald Eagle Creek, it is the principal city of the Lock Haven Micropolitan Statistical Area, itself part of the Williamsport–Lock Haven combined statistical area. At the 2010 census, Lock Haven's population was 9,772.〔(【引用サイトリンク】 title=Geographic Identifiers: 2010 Census Summary File 1 (G001): Lock Haven city, Pennsylvania )〕 Built on a site long favored by pre-European peoples, Lock Haven began in 1833 as a timber town and a haven for loggers, boatmen, and other travelers on the river or the West Branch Canal. Resource extraction and efficient transportation financed much of the city's growth through the end of the 19th century. In the 20th century, a light-aircraft factory, a college, and a paper mill, along with many smaller enterprises, drove the economy. Frequent floods, especially in 1972, damaged local industry and led to a high rate of unemployment in the 1980s. The city has three sites on the National Register of Historic Places—Memorial Park Site, a significant pre-European archaeological find; Heisey House, a Victorian-era museum; and Water Street District, an area with a mix of 19th- and 20th-century architecture. A levee, completed in 1995, protects the city from further flooding. While industry remains important to the city, about a third of Lock Haven's workforce is employed in education, health care, or social services. == History == 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Lock Haven, Pennsylvania」の詳細全文を読む スポンサード リンク
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