# Hydorn Drain

Hydorn Drain is a canal in [Maple Valley Township](https://ontology.bommaritollc.com/id/01a0ca47-7722-70e3-99b4-38635ced7c86), [Sanilac County](https://ontology.bommaritollc.com/id/01a0ca47-5953-7311-ac48-68da826dd41b), [Michigan](https://ontology.bommaritollc.com/id/01a0ca47-57ff-7219-9e2f-cdc1b39bd0fa) (3.5 km long), in the [Elk Creek-Black River (HUC10 0409000101)](https://ontology.bommaritollc.com/id/01a0de92-1ec5-7182-8a6e-d07a8f3e4802) watershed.

IRI: <https://ontology.bommaritollc.com/id/01a0ddfe-b973-7097-bb76-b0cf14a052f0>

Within: [Michigan](https://ontology.bommaritollc.com/id/01a0ca47-57ff-7219-9e2f-cdc1b39bd0fa) › [Sanilac County](https://ontology.bommaritollc.com/id/01a0ca47-5953-7311-ac48-68da826dd41b) › [Maple Valley Township](https://ontology.bommaritollc.com/id/01a0ca47-7722-70e3-99b4-38635ced7c86)

Type: [geo:Feature](http://www.opengis.net/ont/geosparql#Feature), [schema:Canal](https://schema.org/Canal), [schema:Place](https://schema.org/Place)

Location: 43.21364, -82.91549 (box -82.91633, 43.19690, -82.90594, 43.22436; west, south, east, north)

- `adms:identifier`: [gnis 628908](https://ontology.bommaritollc.com/id/01a0ddfe-b974-70e4-ad4c-c3b525aa596b)
- `dcterms:type`: [canal](https://ontology.bommaritollc.com/vocab/geo/gnisCanal)
- `geo:hasDefaultGeometry`: [shape of Hydorn Drain](https://ontology.bommaritollc.com/id/01a0de2c-cc64-7403-aff1-188d57eb10f8)
- `geo:hasGeometry`:
  - [point of Hydorn Drain](https://ontology.bommaritollc.com/id/01a0ddfe-f013-72ff-9eaf-7469731109d4)
  - [shape of Hydorn Drain](https://ontology.bommaritollc.com/id/01a0de2c-cc64-7403-aff1-188d57eb10f8)
- `geo:hasMetricLength`: 3453.9 (xsd:double)
- **in watershed** (`bcgeo:inWatershed`): [Elk Creek-Black River (HUC10 0409000101)](https://ontology.bommaritollc.com/id/01a0de92-1ec5-7182-8a6e-d07a8f3e4802)
- `prov:wasDerivedFrom`:
  - [evidence from https://prd-tnm.s3.amazonaws.com/StagedProducts/GeographicNames/DomesticNames/DomesticNames\_MI\_Text.zip](https://ontology.bommaritollc.com/id/01a0ddfe-b973-7097-bb76-b0ce882dab74)
  - [evidence from https://3dhp.nationalmap.gov/arcgis/rest/services/usgs\_3dhp\_all/FeatureServer](https://ontology.bommaritollc.com/id/01a0de32-5046-7064-945a-2fa6f37011f8)
  - [evidence from https://hydro.nationalmap.gov/arcgis/rest/services/wbd/MapServer](https://ontology.bommaritollc.com/id/01a0de92-18a1-7476-9a58-4e485664969e)
- `schema:containedInPlace`:
  - [Sanilac County](https://ontology.bommaritollc.com/id/01a0ca47-5953-7311-ac48-68da826dd41b)
  - [Maple Valley Township](https://ontology.bommaritollc.com/id/01a0ca47-7722-70e3-99b4-38635ced7c86)
- `skos:prefLabel`: Hydorn Drain

## Elsewhere

- [Wikidata Q33198248](https://www.wikidata.org/wiki/Q33198248) (proposed match (exactMatch))
- [USGS GNIS 628908](https://edits.nationalmap.gov/apps/gaz-domestic/public/summary/628908) (gnis)
- [OpenStreetMap](https://www.openstreetmap.org/?mlat=43.21364&mlon=-82.91549#map=14/43.21364/-82.91549) (43.21364, -82.91549)
- [Google Maps](https://www.google.com/maps/search/?api=1&query=43.21364,-82.91549)
- [Source](https://prd-tnm.s3.amazonaws.com/StagedProducts/GeographicNames/DomesticNames/DomesticNames_MI_Text.zip) (prd-tnm.s3.amazonaws.com)
- [Source](https://3dhp.nationalmap.gov/arcgis/rest/services/usgs_3dhp_all/FeatureServer) (3dhp.nationalmap.gov)
- [Source](https://hydro.nationalmap.gov/arcgis/rest/services/wbd/MapServer) (hydro.nationalmap.gov)

## Pointing here

- Mappings (1; `owl:annotatedSource`):
  - [exactMatch http://www.wikidata.org/entity/Q33198248 (proposed)](https://ontology.bommaritollc.com/id/01a0ddff-75af-7251-b15c-e3b7fca54e6f)

---
Also as: [Turtle](https://ontology.bommaritollc.com/id/01a0ddfe-b973-7097-bb76-b0cf14a052f0.ttl), [JSON-LD](https://ontology.bommaritollc.com/id/01a0ddfe-b973-7097-bb76-b0cf14a052f0.jsonld), [N-Triples](https://ontology.bommaritollc.com/id/01a0ddfe-b973-7097-bb76-b0cf14a052f0.nt), [HTML](https://ontology.bommaritollc.com/id/01a0ddfe-b973-7097-bb76-b0cf14a052f0)
Cite as: Hydorn Drain. bc-ontology, release 0.1.0-rc15, 2026-09-28. https://ontology.bommaritollc.com/id/01a0ddfe-b973-7097-bb76-b0cf14a052f0
Release 0.1.0-rc15, graph hash 90961d0d6b29954f5f0257ebc2d1d12c6ce580def6a2f45cbf04d248aa879e72.