A collection of datasets from various Dutch institutions to demonstrate a Spatial Data Infrastructure built on Portolan.
Portolan catalog — vro/geomorfologische_kaart
The national Geomorphological Map of the Netherlands at scale 1:50,000 (BRO object GMM), produced by Wageningen Environmental Research. The source GeoPackage holds three distinct polygon layers, published here as separate collections:
See the links in catalog.json.
All assets are public. Relative hrefs resolve against this directory on https://data.source.coop/cholmes/portolan-nl/.
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