He mapped the rainforest.
2006
There were still hundreds more villages that didn't show up on their map. What about them? The answer came with a Global Positioning System (GPS) unit. Dinah got a group of illiterate rain-forest residents to use this hi-tech piece of equipment to find and electronically register village locations.
This gave the team new vision and by the end of 2006, they planted 200 churches in previously unknown villages. By the end of 2008, the teams had mapped 1,300 villages in the rain forests. By now, the teams had more data on the villages than the government of Madagascar and by the end of 2009, there were 600 churches in existence.