This script was made during the permaculture design course exercise and is intended to help getting a contour map from a property. It queries google elevation API, and calculates contour maps and overlays it onto google maps.
Since Version V0.3, Contour Map Creator has its dedicated site.
Version V0.3 allows you to select an area interactively and overlays contours directly onto google maps.
Version 0.21 now uses the CONREC contouring algorithm and produces much better results, here an example:
Download Version 0.1 here: ContourMapCreator_V0.1
Below is an example: