DIGMAPS — private map georeferencer

old map · resource

Load a scanned map to begin

Use “Load old map” in the Georeference panel →
Any JPG / PNG. It stays on your device.

modern map · geo

NEED 3+

Layers

Pick a layer above, then fade it over the modern map with the slider. Old maps opens a picker of every georeferenced map covering your view — including USGS topo quads.

Georeference a map

LoadAnchorLinkOverlay

Anchors

RMS error

—

Click Add anchor pair, then a feature on the old map, then the same feature on the modern map. Repeat. Drag any marker to fine-tune.

Right-click either map to copy coordinates.

Transform method

Method (min. anchors)

Anchor list

#	fit error

Click a row to fly both maps to that anchor.

Save & export

Bake runs real GDAL (WebAssembly) in the browser — a georeferenced warped.tif for QGIS/Avenza. MBTiles is the offline tile pack for the phone. Nothing is uploaded.