A 2 tier wall system with mortar behind the stone was installed at this lake house. Then dark brown natural bluestone steps were incorporated into the wall with lighting in the steps as well as in the turf. The first wall stands 2 1/2' feet high and 25 feet long and the second wall stands 4 1/2' feet high and is 70 feet long with drainage at the footing and 2" pvc pipe hidden in wall for water relief. There is a 3 foot planting bed between the two walls. Learn more about retaining wall drainage.