A vital aspect of Lowell's complex canal system, Lower Locks helped control the flow of water and travel of boats in downtown Lowell. Join Ranger Frank as he gives a short history of this lock chamber and gatehouse. #NationalPreservationMonth #LowellNPS #FindYourPark #LikeLowell Lowell Historic Board Tsongas Industrial History Center | Lowell National Historical Park

2.8K views · 84 reactions | Do you love riding the rails in Lowell? Our trolleys offer a fun and unique experience for visitors of all ages. This year the trolley will be running until November 25th, with the last day being the Holly Jolly Trolley celebration! For a special look at the trolley system check out our new video, riding along from the Suffolk Mill to the Visitor Center! #FindYourPark #NPS101 #Lowell | Lowell National Historical Park | Facebook