Complex sentence: The mill is an important footnote in the history of the texitle industry in America, and is located in the heart of the Blackstone River Valley National Heritage Corridor at Uxbridge, a heritage corridor of national significance for America's earliest industrializtion.
Split into simpler sentences: The mill is an important footnote in the history of the texitle industry in America. It is located in the heart of the Blackstone River Valley National Heritage Corridor at Uxbridge, a heritage corridor of national significance for America's earliest industrializtion.