The relief of the hills around Valkenburg, from the Actueel Hoogtebestand Nederland

Ground level (DTM, 0.5 metre) from PDOK's AHN map service. According to the service's legend, yellow is low (20 to 35 metres above NAP), going through orange (40 to 90 metres) to red-orange (above 100 metres): the light ribbon is the Geul valley, the darker areas are the plateaus. The image comes straight from the service, so you see what the source delivers before downloading anything.

Source: AHN via PDOK (WMS) · opgehaald 25 oktober 2026Open the table Single block

These figures come from

Actueel Hoogtebestand Nederland (AHN, national elevation model)

Het Waterschapshuis

The elevation map of the Netherlands, measured by laser from an aircraft: at least ten measurements per square metre. There are two maps. The terrain model (DTM) is the bare ground. The surface model (DSM) is everything on it, including buildings and trees. Via PDOK as a map layer (WMS), as a raster API (WCS) and as a download.

This block is an example of what you can show with this source. Open the source itself to look further, pick other figures or use the data in your own work.

Open the table at Het Waterschapshuis The API call behind this block All about this source

Access: Open
Licence: CC0 (AHN4 via PDOK); CC BY 4.0 (AHN6)
Table: dtm_05m
Latest figure: AHN4
Fetched: 25 October 2026

Fetch exactly these figures yourself

curl "https://service.pdok.nl/rws/ahn/wms/v1_0?service=WMS&version=1.3.0&request=GetMap&layers=dtm_05m&styles=&crs=EPSG:28992&bbox=180000,312000,196000,323000&width=960&height=660&format=image/png"

The relief of the hills around Valkenburg, from the Actueel Hoogtebestand Nederland

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