4/6/2021 National Park Service hopes to attract more tourists to Slater Mill The National Park Service officially owns the Old Slater Mill National Historic Landmark District in Pawtucket after a property transfer was completed last week. (Breeze photo by Melanie Thibeault ) PAWTUCKET – It’s official: The National Park Service is now in control of the Old Slater Mill National Historic Landmark District in Pawtucket after a transfer of the property was completed last week, and NPS leaders say they’re excited to begin drawing more tourists to the area. With the transfer from the nonprofit Old Slater Mill Association, the property is now officially part of the Blackstone River Valley National Historical Park, and the NPS will now own and operate the three historic buildings on the property, including the 1793 Old Slater Mill, the 1810 Wilkinson Mill, and the 1758 Sylvanus Brown House. Also included in the transfer are the approximately 3 acres of land surrounding the structures, which includes the raceway infrastructure for both mills and Hodgson Rotary Park on the west bank of the Blackstone River, states a release.