Isolines of the Riss formation envelopeIsolignes de l'enveloppe du Riss
Isolignes de l'enveloppe du RissIsolines of the Riss formation envelope
This API provides isolines representing the top surface of geological formations attributed to the Riss glacial period, in the canton of Geneva, Switzerland. The contour lines were calculated from a digital interpolation model with a 10-metre equidistance, then smoothed to produce a softer rendering without altering the underlying base information. The dataset is published and maintained by the Système d'information du territoire genevois (SITG), the geneva cantonal territorial information system, and is freely accessible without authentication. It is useful for geological and land-use studies within the canton.Les isolignes ont été calculées à partir du modèle numérique d'interpolation du toit des formations attribuées au Riss avec une équidistance de 10m. Afin de donner un rendu plus doux les courbes de niveaux ont été retravaillées par le biais d'un lissage qui ne modifie en rien l'information de base.…
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Data schema (3 fields)
Click a field to see example values.
| Field | Type | Description |
|---|---|---|
| ALTITUDE | integer | Elevation value in metres represented by the isoline.Elevation value in metres represented by the isoline. |
| OBJECTID | oid | Unique internal identifier for the record.Unique internal identifier for the record. |
| Shape__LengthSHAPE.LEN | double | Length of the isoline geometry in metres.Length of the isoline geometry in metres. |
Schema captured from arcgis 4 days ago.
Query the data
Pick columns and a sort, then fetch a live preview straight from the source. Choose an API-filterable column (marked ▾) under “Where” to pick from its list of values.
Sample data (3 records)
| ALTITUDE | OBJECTID | Shape__Length |
|---|---|---|
| 360 | 1 | 1958.25535135686 |
| 340 | 2 | 8.596431310663629 |
| 380 | 3 | 458.97908388552 |
Live sample captured at profiling time — values may have changed upstream.
Verification Status
Using the API
Configuration
- Base URL
- https://vector.sitg.ge.ch/arcgis/rest/services/GOL_RISS_ISOL/FeatureServer
License
Terms stated by the source (not a recognized license):
© 2026 SITG
Query examples
curl -s 'https://vector.sitg.ge.ch/arcgis/rest/services/GOL_RISS_ISOL/FeatureServer?f=json' -H 'Accept: application/json'Service definition: the list of layers.
Dataset
Volume & freshness
Machine-readable & source
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