Old water control valve on the Blackstone River in Rhode Island. One of many dams along the river that powered Samuel Slater’s Mill in Pawtucket, and many other mills along the Blackstone River, from Worchester, MA, to Pawtucket, RI.
Most of the mills are gone now, the auxiliary waterways disused
101 views as of 6/1./2012
Nikon D70, f/8 1/250s ISO 200, 18-79mm Nikkor lens, Raw format