Here is a trial app made using blender with two plugins, gis and verge 3d. The technique is quite complex and I won't attempt to explain it here. This is an attempt to make a model that provides map based views of a landscape. It is a work in progress and a starter for discussion. Here is the app. Best viewed on pc with hd screen. Zoom with mmb, pan with lmb. Click black spots for annotations. Use buttons to move through content.
Under the model is a series of images that relate.