Manitoba Hydro ArcGIS Server Reference Data
An ArcGIS Server 10.91 REST services directory hosted on Manitoba Hydro's own domain at maps.hydro.mb.ca, readable anonymously. The root listing returned nine folders (ARL, ConTrack, DISTAPPS, GDS, JUTA, LEA, Locators, ReferenceData, Utilities); most are empty to an anonymous caller, but ReferenceData/MH_AdminBoundaries is fully readable and exposes three query-capable layers — MH_CustomerServiceCentres (19 features), MH_LocateAreas and MH_StationAreas. The site root itself returns HTTP 403; only the /arcgis/rest/services tree responds. Manitoba Hydro publishes no documentation, index, or terms for this host — it is recorded here because it is a real, on-domain, anonymously queryable API surface, not because it is offered as one.
Documentation
APIReference
https://maps.hydro.mb.ca/arcgis/rest/services?f=json
APIReference
https://maps.hydro.mb.ca/arcgis/rest/services/ReferenceData/MH_AdminBoundaries/FeatureServer?f=json
Schemas & Data
JSONSchema
https://raw.githubusercontent.com/api-evangelist/manitoba-hydro/refs/heads/main/json-schema/manitoba-hydro-customer-service-centres.schema.json
JSONSchema
https://raw.githubusercontent.com/api-evangelist/manitoba-hydro/refs/heads/main/json-schema/manitoba-hydro-locate-areas.schema.json
JSONSchema
https://raw.githubusercontent.com/api-evangelist/manitoba-hydro/refs/heads/main/json-schema/manitoba-hydro-station-areas.schema.json