Scanned frames come from Retrolens (LINZ Crown aerial photography,
CC BY 3.0) and are fitted by hand. Rows marked LINZ are
published orthophotos from LINZ Basemaps (CC BY 4.0), cut to
the site and already georeferenced — cite whichever you use.
Year
Frame / survey
Quality
Preview
Full-res frames are 6–28 MB each
Georeferencer
The site boundary stays pinned in the centre of the map. Drag, rotate, and scale each historical image underneath it until the boundary sits over the site, then download the QGIS files.
Download frames in step 1, or add your own images above, to start fitting.
Drag the image to move it · hold the scroll wheel to pan the map.
Saved images
Apply the fit to:
Selected images get the same placement, ready for you to check and save individually.
