Pittsburgh's Rivers

For centuries, the land at the forks of the Ohio River was known to the Native Americans of western Pennsylvania, but it was not until 1753 that a British officer named George Washington surveyed the area for Gov. Robert Dinwiddie of Virginia. He described the land as well timbered and convenient for building, and with that, the first community at the site of modern-day Pittsburgh was established. Over the next two and a half centuries, Pittsburgh changed from a small settlement in the Penn...