Blackstone River Valley National Historical Park is located in Massachusetts and Rhode Island. It preserves the rich industrial history of the Blackstone River and the surrounding area, which played a crucial role in the American Industrial Revolution. The park features historic sites, trails, and visitor centers that highlight the region's significance in textile manufacturing and transportation. Visitors can explore various attractions, including the Slater Mill, often considered the birthplace of the American factory system. The park also offers recreational opportunities such as hiking, biking, and fishing, allowing guests to enjoy the natural beauty of the valley while learning about its historical importance.