Provincial monuments in North Holland by type: most small objects (275 features), then Stelling van Amsterdam and flood defence elements

Provincial monuments in North Holland by type, oktober 2026, in features. Total: 761; the largest 6 of 6 categories are shown. Small objects is 36% of the total. Counted with one statistics query on the layer (field srt_monume). One monument can consist of several features (polygons). Some municipality names in the layer predate mergers (Zeevang, Graft-De Rijp).

Source: Provincie Noord-Holland, ArcGIS-dienst oi_dataservice_alg (laag Provinciale monumenten INSPIRE) · opgehaald 25 oktober 2026Open the table Single block

These figures come from

North Holland Province geoservices (ArcGIS REST)

Provincie Noord-Holland

The ArcGIS server of the province of North Holland, with nearly 200 services in the root and six subfolders. On 16 October 2026 we counted 3,843 leaf layers on the server; because the same layer recurs in many collection services, our index keeps 2,683 after deduplication. Three quarters sit in the oi_op folder (environmental information), including a time series of the provincial environmental regulation, the provincial monuments and the nature management plans per year. Almost none of this is on data.overheid.nl or in the National Georegister.

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 Noord-Holland The API call behind this block All about this source

Access: Open
Licence: niet vastgesteld
Table: https://geoservices.noord-holland.nl/ags/rest/services/oi_dataservice_alg/MapServer/31
Latest figure: oktober 2026
Fetched: 25 October 2026

Fetch exactly these figures yourself

curl "https://geoservices.noord-holland.nl/ags/rest/services/oi_dataservice_alg/MapServer/31/query?where=1%3D1&outStatistics=%5B%7B%22statisticType%22%3A%22count%22%2C%22onStatisticField%22%3A%22objectid%22%2C%22outStatisticFieldName%22%3A%22n%22%7D%5D&groupByFieldsForStatistics=srt_monume&orderByFields=n%20DESC&f=json"

curl "https://geoservices.noord-holland.nl/ags/rest/services/oi_dataservice_alg/MapServer/31/query?where=1%3D1&returnCountOnly=true&f=json"

Provincial monuments in North Holland by type: most small objects (275 features), then Stelling van Amsterdam and flood defence elements

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