Where was the first American mill to carry on the processes of spinning and weaving under a single roof located at?

The first American mill to carry on the processes of spinning and weaving under a single roof was located in Pawtucket, Rhode Island. This mill, built by Samuel Slater in 1793, marked a significant development in the American textile industry and is often considered the birthplace of the American Industrial Revolution. Slater's mill utilized water power from the Blackstone River to operate its machinery.