# shape of Markham Drain

IRI: <https://ontology.bommaritollc.com/id/01a0de2c-cf42-7384-bec3-30c70624edad>

Type: [geo:Geometry](http://www.opengis.net/ont/geosparql#Geometry)

Location: 43.62173, -83.27883 (box -83.29760, 43.60821, -83.26005, 43.63525; west, south, east, north)

- `adms:identifier`: [gnis-3dhp-shape 631580](https://ontology.bommaritollc.com/id/01a0de2c-cf42-7384-bec3-30cd96f7ecd7)
- `geo:asWKT`: <http://www.opengis.net/def/crs/OGC/1.3/CRS84> MULTILINESTRING ((-83.288257 43.61297, -83.28616 43.613053, -83.283793 43.61416, -83.283826 43.616664, -83.281261 43.616762, -83.277458 43.618299, -83.275508 43.618623, -83.273708 43.619955, -83.273681 43.620398), (-83.2976 43.608212, -83.293004 43.608268, -83.293004 43.609179, -83.291979 43.609271, -83.291962 43.610577, -83.288809 43.612987, -83.288257 43.61297), (-83.260724 43.631395, -83.260052 43.633004, -83.261033 43.634149, -83.261024 43.635247), (-83.273681 43.620398, -83.274049 43.623208, -83.267999 43.626346, -83.263933 43.627828, -83.263896 43.629878, -83.260724 43.631395)) (geo:wktLiteral)
- `prov:wasDerivedFrom`: [evidence from https://3dhp.nationalmap.gov/arcgis/rest/services/usgs\_3dhp\_all/FeatureServer](https://ontology.bommaritollc.com/id/01a0de2c-cf42-7384-bec3-30c62ee67703)
- **simplification tolerance** (`bcgeo:simplificationTolerance`): 25.0 (xsd:double)

## Elsewhere

- [OpenStreetMap](https://www.openstreetmap.org/?mlat=43.62173&mlon=-83.27883#map=14/43.62173/-83.27883) (43.62173, -83.27883)
- [Google Maps](https://www.google.com/maps/search/?api=1&query=43.62173,-83.27883)
- [Source](https://3dhp.nationalmap.gov/arcgis/rest/services/usgs_3dhp_all/FeatureServer) (3dhp.nationalmap.gov)

## Pointing here

- Default geometry of (1; `geo:hasDefaultGeometry`):
  - [Markham Drain](https://ontology.bommaritollc.com/id/01a0ddfe-be53-722d-8d7e-e23e695b039e)
- Geometry of (1; `geo:hasGeometry`):
  - [Markham Drain](https://ontology.bommaritollc.com/id/01a0ddfe-be53-722d-8d7e-e23e695b039e)

---
Also as: [Turtle](https://ontology.bommaritollc.com/id/01a0de2c-cf42-7384-bec3-30c70624edad.ttl), [JSON-LD](https://ontology.bommaritollc.com/id/01a0de2c-cf42-7384-bec3-30c70624edad.jsonld), [N-Triples](https://ontology.bommaritollc.com/id/01a0de2c-cf42-7384-bec3-30c70624edad.nt), [HTML](https://ontology.bommaritollc.com/id/01a0de2c-cf42-7384-bec3-30c70624edad)
Cite as: shape of Markham Drain. bc-ontology, release 0.1.0-rc12, 2026-09-27. https://ontology.bommaritollc.com/id/01a0de2c-cf42-7384-bec3-30c70624edad
Release 0.1.0-rc12, graph hash a20f66b983549f220c6f061b7e40233771a06aa47a0c0aede95a2a57ee2e9553.