# Walther Drain

Walther Drain is a canal in [Hampton Township](https://ontology.bommaritollc.com/id/01a0ca47-7148-717c-b98e-e8ffef8d007c), [Bay County](https://ontology.bommaritollc.com/id/01a0ca47-5951-75ad-83e2-5fa7eb6f5644), [Michigan](https://ontology.bommaritollc.com/id/01a0ca47-57ff-7219-9e2f-cdc1b39bd0fa), in the [Sebewaing River-Frontal Lake Huron (HUC10 0408010301)](https://ontology.bommaritollc.com/id/01a0de92-1e6a-773a-9f33-1d21e1a7ea24) watershed.

IRI: <https://ontology.bommaritollc.com/id/01a0ddfe-ce1b-7585-a335-88ad27292a60>

Within: [Michigan](https://ontology.bommaritollc.com/id/01a0ca47-57ff-7219-9e2f-cdc1b39bd0fa) › [Bay County](https://ontology.bommaritollc.com/id/01a0ca47-5951-75ad-83e2-5fa7eb6f5644) › [Hampton Township](https://ontology.bommaritollc.com/id/01a0ca47-7148-717c-b98e-e8ffef8d007c)

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

Location: 43.61974, -83.80970 (box -83.80970, 43.61974, -83.80970, 43.61974; west, south, east, north)

- `adms:identifier`: [gnis 1615745](https://ontology.bommaritollc.com/id/01a0ddfe-ce1b-7585-a335-88b61f60bfc2)
- `dcterms:type`: [canal](https://ontology.bommaritollc.com/vocab/geo/gnisCanal)
- `geo:hasDefaultGeometry`: [point of Walther Drain](https://ontology.bommaritollc.com/id/01a0ddff-08fc-72b3-98c1-99246ca33f2d)
- `geo:hasGeometry`: [point of Walther Drain](https://ontology.bommaritollc.com/id/01a0ddff-08fc-72b3-98c1-99246ca33f2d)
- **in watershed** (`bcgeo:inWatershed`): [Sebewaing River-Frontal Lake Huron (HUC10 0408010301)](https://ontology.bommaritollc.com/id/01a0de92-1e6a-773a-9f33-1d21e1a7ea24)
- `prov:wasDerivedFrom`:
  - [evidence from https://prd-tnm.s3.amazonaws.com/StagedProducts/GeographicNames/DomesticNames/DomesticNames\_MI\_Text.zip](https://ontology.bommaritollc.com/id/01a0ddfe-ce1b-7585-a335-88ac04f628c9)
  - [evidence from https://3dhp.nationalmap.gov/arcgis/rest/services/usgs\_3dhp\_all/FeatureServer](https://ontology.bommaritollc.com/id/01a0de32-5fdc-74fc-bf51-daa7a21b8611)
  - [evidence from https://hydro.nationalmap.gov/arcgis/rest/services/wbd/MapServer](https://ontology.bommaritollc.com/id/01a0de92-182e-7716-9d74-ca76033e3abf)
- `schema:containedInPlace`:
  - [Bay County](https://ontology.bommaritollc.com/id/01a0ca47-5951-75ad-83e2-5fa7eb6f5644)
  - [Hampton Township](https://ontology.bommaritollc.com/id/01a0ca47-7148-717c-b98e-e8ffef8d007c)
- `skos:prefLabel`: Walther Drain

## Elsewhere

- [Wikidata Q33218938](https://www.wikidata.org/wiki/Q33218938) (proposed match (exactMatch))
- [USGS GNIS 1615745](https://edits.nationalmap.gov/apps/gaz-domestic/public/summary/1615745) (gnis)
- [OpenStreetMap](https://www.openstreetmap.org/?mlat=43.61974&mlon=-83.80970#map=14/43.61974/-83.80970) (43.61974, -83.80970)
- [Google Maps](https://www.google.com/maps/search/?api=1&query=43.61974,-83.80970)
- [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/Q33218938 (proposed)](https://ontology.bommaritollc.com/id/01a0ddff-77fa-75bf-a7b6-3e13db48c527)

---
Also as: [Turtle](https://ontology.bommaritollc.com/id/01a0ddfe-ce1b-7585-a335-88ad27292a60.ttl), [JSON-LD](https://ontology.bommaritollc.com/id/01a0ddfe-ce1b-7585-a335-88ad27292a60.jsonld), [N-Triples](https://ontology.bommaritollc.com/id/01a0ddfe-ce1b-7585-a335-88ad27292a60.nt), [HTML](https://ontology.bommaritollc.com/id/01a0ddfe-ce1b-7585-a335-88ad27292a60)
Cite as: Walther Drain. bc-ontology, release 0.1.0-rc15, 2026-09-28. https://ontology.bommaritollc.com/id/01a0ddfe-ce1b-7585-a335-88ad27292a60
Release 0.1.0-rc15, graph hash 90961d0d6b29954f5f0257ebc2d1d12c6ce580def6a2f45cbf04d248aa879e72.