books.google.co.uk - Pittsburgh's East Liberty Valley originally consisted of lush hunting grounds used by many Native American groups. In the 1700s, British general John Forbes instructed George Washington to build a military road from Fort Ligonier through the East Liberty Valley to the forks of the Ohio River. In 1758,...http://books.google.co.uk/books/about/Pittsburgh_s_East_Liberty_Valley.html?id=qfnkcWmDdDQC&utm_source=gb-gplus-sharePittsburgh's East Liberty Valley
