The HGIS de las Indias project is a system of historic and geographic data of colonial America of 18th. 

It is based on web services and it is opened to everyone that wants to use the recopile data as well as to add news. For example, at this moment, there is a petition to share demographic data (see the call for it here).

A part of the services is the consult of georeferrenced ancient maps that can be consulted in a visualizer, which allows the superposition and comparison among maps and data. 

The project is funded by Austrian Science Fund (FWF) and conducted by Dr. Werner Stangl (Universität Graz).