Not sure of the exact spot you're talking about. But like I said.... the NJPB LIDAR map sucks. I suggest using my new HD mapI'm surprised the LIDAR doesn't show this as there is quite a depression, but then it is also heavily over grown
The available 1-meter (HD) LIDAR ends at the Ocean County line unfortunately so if that area is East of the line then it will only be 3-meter LIDAR, but that is generally better on my new map than the NJPB map.
The USGS data used for the map is "bare-earth LIDAR" meaning that it is not supposed to show foliage.