Today I am working on an earthwork with a survey that has contours that are elevated, but the areas near the house have no elevated contours. I understand that around the house, there is no reason to have 1′ increments as the elevation is pretty flat at around 843.5′. Most surveys I have seen elevate those parts by using 3D Polylines. Especially where the surveyor shoots around the hardscape and connects the polylines. I probably should be thankful that the contour portion of this survey are elevated and I am not looking at a 0 elevated flattened drawing. This kind of thing would be more important if using Civil 3D as you must design straight to the existing and can’t just work in pure plan view.