I seen a pontoon house boat on the river when it was up, just about 100 yards downstream from the ramp. I assume thats where he put it in!! But anyway, we put in a bass boat. I seen Jon boats.. so pretty much all sizes of boats have been put in there. then again, thats when the water level was high. The ramp however, is about as steep as I have seen in this area. I have seen steeper in the north where the ground is rockier and the river levels arent as constant.