Located in the northeast United States, the Commonwealth of Pennsylvania has a population approaching 13 million people and, in Philadelphia, one of the country’s five most-populated cities. Pennsylvania’s location among the north-eastern states makes it a much-visited place; car hire in Pennsylvania will let drivers enjoy the varied views and differing landscapes of the area. As well as the largest city Philadelphia, the state also has part of the Appalachian Mountains running through – these go northeast across the Canadian border and also span as far south as Georgia. The Appalachians are home to many species of squirrels, as well as unique flora on its peaks.