The group decided to use the GIS Cloud application after they won second prize in a competition run by the company last year and as a result were given enough licences for the application for all five data collectors. Ms Armstrong said usually a licence is about $500.
Ms Armstrong said in the past recording the names, dates and mapping the wahi tapu was assigned to particular people in the hapu.
"However, with the movement of whanau from the 'kainga' in Pipiwai and Kaikou to town, or Auckland, Hamilton or further afield to Australia and elsewhere, that job has not been picked up by anyone else. The records are sometimes lost in the move away from Te Orewai. It is important that we maintain the records."
Ms Armstrong said she hopes whanau would contribute information so that data collectors can add whakapapa (genealogy) to a marker.
She said this was not the first time GIS mapping has been married with cultural tikanga.
She said she was first introduced to it through Nga Tirairaka o Ngati Hine, the environmental body for Ngati Hine, where it was used to map and monitor tribal waterways and in other environmental applications. It has also been used to map Treaty claims.