Māori GIS mapping in Aotearoa

Māori GIS is not one method and it is not Western GIS with a few Māori labels added afterwards. It is spatial mahi shaped by the kaupapa, the people and the places involved.

For an iwi, hapū, marae, whenua trust, taiao team or researcher, GIS may help answer very different questions: where land records intersect, how an awa has changed, where restoration work is happening, what an old plan refers to, how ingoa wāhi connect to historical sources, or how to make a clear map for hui.

The software is only useful if it helps with that work.

Place is more than geometry

GIS is very good at points, lines, polygons, rasters and tables. Whenua, wai, maunga, marae, ara, mahinga kai and ingoa wāhi can involve relationships and histories that do not fit neatly inside those structures.

An awa can be a network line in a national dataset and a living relationship in the kaupapa. A cadastral parcel can be necessary for a land question without defining the whole whenua. An ingoa wāhi can be a label on a map while also carrying whakapapa, events and memory.

The practical approach is not to reject geometry. It is to be clear about what each representation is doing.

See Block, parcel and title, Awa as the organising geography and Place names.

Start with the mahi

A useful first question is simply: what are we trying to find out, show, collect or decide?

That question usually leads to better technology choices than starting with a product.

Mahi	Useful starting points
understand Māori land and parcels	Māori land data and Property and cadastre
investigate an awa or restoration project	Taiao data, Field GIS and Investigating an awa
map historical references and ingoa wāhi	Historical research, Place names and Archives to map
collect observations in the field	Field GIS and KoboToolbox
make a map for hui or planning	Cartography and map communication
search large report collections	Local AI
build organisational GIS capability	Starting an iwi or hapū GIS

Different sources answer different questions

Māori GIS often places several kinds of evidence beside one another:

• locally held kōrero and research
• iwi, hapū and marae records
• Māori Land Court material
• survey plans, titles and parcels
• Waitangi Tribunal and CFRT research
• historical maps and aerial imagery
• council planning and hazard layers
• national environmental data
• field observations
• modelling and derived analysis

They do not need to be collapsed into one idea of truth.

A LINZ parcel is maintained for cadastral purposes. A council hazard layer represents a particular hazard method. A historical plan reflects its source, date and purpose. A whānau account may explain a relationship no national dataset records.

Keep those roles visible. See Authoritative for what? and Provenance and source checking.

Whenua and administrative geometry

Property systems are often unavoidable when the mahi involves planning, access, titles, papakāinga or land administration. The useful skill is learning what each administrative geometry represents.

A Māori Land Court block, LINZ parcel, Record of Title and council rating unit may overlap without being interchangeable. They are different records created for different purposes.

Use Block, parcel and title as the starting explanation.

Rohe and overlapping relationships

GIS encourages clean boundaries. Some rohe and place relationships overlap, change by kaupapa or are better explained through places, waterways and whakapapa than one exclusive polygon.

Where a polygon is useful for an operational task, give it a name and description that say what it represents. Several representations can coexist without forcing the map to settle a relationship it was never designed to settle.

See Mana whenua and rohe without hard boundaries.

Ingoa wāhi

Place names deserve more than one name field when the research contains official, historical, local or source-specific forms.

Useful structures can retain:

• display name
• official name where relevant
• historical spelling
• source spelling
• source reference and date
• notes about the place or uncertainty

This lets a project show differences rather than silently choosing one name and deleting the evidence around it.

Continue with Place names and ingoa wāhi, Historical research and the Kā Huru Manu example.

Taiao

Taiao mapping works best when field observations and national datasets are used together without confusing one for the other.

A national river network can supply catchment structure. A monitoring team can add repeat observations. Imagery can show visible change. LiDAR can reveal terrain. Kōrero and whakapapa can explain why particular places and changes matter.

For practical examples, see Taiao data, KoboToolbox field work and Ngā Kaitiaki o Ngā Wai Māori.

Choose tools by the job

QGIS, ArcGIS, Google Earth, KoboToolbox and Māori-led platforms all solve different problems.

• QGIS is strong for local/open desktop GIS and analysis.
• ArcGIS is strong where an organisation already uses Esri web, field and enterprise workflows.
• Google Earth is useful for fast visual exploration, imagery and familiar 3D presentation.
• KoboToolbox is useful when a structured form is the centre of field collection.
• Māori-led services and platforms can offer different data, infrastructure and relationship models.

There is no need for every project to use the same stack. See Tools, Field GIS and Māori GIS projects.

Local, cloud and hybrid work

Cloud and local are technical characteristics, not tests of kaupapa. A managed web service can be the easiest way for dispersed people to work together. A local GeoPackage can be the best fit for a small project. Many organisations will use both.

Useful questions are concrete: where does the working copy sit, who administers the account, what is synchronised, what can be exported, what does it cost and what happens when the service changes?

See Cloud is not one thing, Local and hybrid GIS and Te Pā Tūwatawata.

Sharing different versions

A working GIS and a public map do not need identical detail.

A taiao team may keep detailed monitoring records and publish a catchment summary. A historical project may retain full citations internally and publish selected places with links to sources. A marae asset system may produce a simple emergency map without exposing its whole maintenance database.

That is ordinary information design: choose the representation for the audience and purpose.

Use Prepare information for sharing and Publishing Māori GIS maps.

Māori Data Sovereignty

Māori Data Sovereignty matters because GIS creates copies, joins, derived layers, hosted services and inferences. It can reveal relationships that were not obvious in any one source.

The Māori Data Sovereignty section explains those technical consequences and organisational choices. It is not a set of rules issued by MāoriGIS.nz about what iwi, hapū or whānau may map.

For day-to-day project work, keep three things visible:

1. where the information came from
2. what this representation was made for
3. where copies and derived versions go

That small habit solves a surprising number of later problems.

Learn from other projects

Māori GIS in Aotearoa already has a substantial history. Kā Huru Manu shows long-term iwi place-name and archive work. Māori Maps shows a focused public marae map. Te Whata shows an iwi-oriented data environment. Ngā Poutama and earlier Indigenous Mapping Wānanga provide a practical training lineage.

The Māori GIS projects and resources library brings these together with videos, papers, StoryMaps and training.

A useful working pattern

For many projects the sequence is straightforward:

kaupapa or question
        ↓
source and local context
        ↓
working representation
        ↓
check source, geometry and meaning
        ↓
analysis or field work
        ↓
map / dataset / story suited to its audience
        ↓
retain enough provenance for the next person

GIS does not need to contain everything about a place to be useful. It needs to be clear about what it does contain and why.

Last reviewed: 26 August 2026