There are no items in the area that have elevation information. I suspect that the information that you're looking at comes from some other source. If you have information on which items have that height next to the Waddle Bluffs, please include references to them in the note when reporting the issue so that the issue can be addressed, or you can report the issue to whatever source is including OpenStreetMap information. According to the USGS topographic maps, the bluffs are more like 300 feet.