A rudimentary community-based Geographic Information System (GIS)
Once informants have completed transposing and cross-checking information, other features can be added to the model. These include administrative or protected area boundaries, etc., obtained from official sources. 
For doing this a spatial relation between base map and relief model is established by super-imposing a geo-referenced grid on the top of the model.

Boundaries at hand
Latitude and longitude co-ordinates of the boundary corners are identified on the source map and transposed on the relief model. Each corner is then connected to the next using a colored yarn. 
At the end of this exercise the boundary is visible to everyone

Finishing Touches
The requisite of a 3-D Model is that everyone should understand it.  
A detailed legend, including information on scale, a North-labeled arrow and an acknowledgement plate are embedded into the model.