The lock staircase consists of three locks with a total of 7.5 m difference in height. Directly above the lock staircase a street crosses the Dalsland canal with a bascule bridge, with 3 m height. Lennartsfors lock staircase is after Håverud the most impressive lock system in Dalsland canal. The locks are blasted into the mountain and after the lock chambers follows a channel that goes through the mountain, with steep banks.
At the locks, a wonderful trail, partially over a wooden plank footbridge, leads from Lelang to Foxen. Near the lock keeper's house, there's a small café with benches.