A Century of Conservation: The Story of Pennsylvania’s State Parks

Pennsylvania’s state park system is celebrating its centennial as one of the country’s largest and most popular recreational attractions. Each year, thirty-six million people visit one (or more) of the Keystone State’s one hundred and fourteen parks to picnic, hike, swim, boat, camp, ski, snowmobile, fish, hunt, or raft white water rapids. This sprawling collec­tion of open...
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Documents from the Three Mile Island Crisis

In late March 1979, the nation ex­perienced its worst commercial nuclear accident as a result of techni­cal malfunctions and operator error at the Three Mile Island (TMI) nuclear generating station near Harrisburg. The crisis, which began on Wednes­day, March 28, lasted for several days and prompted the evacuation of thousands of residents. The accident and reaction to it are well docu­mented in...
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