# shape of Gretton Drain IRI: Type: [geo:Geometry](http://www.opengis.net/ont/geosparql#Geometry) Location: 42.56803, -84.53149 (box -84.53869, 42.56776, -84.52429, 42.56830; west, south, east, north) - `adms:identifier`: [gnis-3dhp-shape 627416](https://ontology.bommaritollc.com/id/01a0de2c-cae5-70c6-b9e0-a48cd2c16b72) - `geo:asWKT`: MULTILINESTRING ((-84.524289 42.567761, -84.538692 42.568297)) (geo:wktLiteral) - `prov:wasDerivedFrom`: [evidence from https://3dhp.nationalmap.gov/arcgis/rest/services/usgs\_3dhp\_all/FeatureServer](https://ontology.bommaritollc.com/id/01a0de2c-cae5-70c6-b9e0-a4856e84eb59) - **simplification tolerance** (`bcgeo:simplificationTolerance`): 25.0 (xsd:double) ## Elsewhere - [OpenStreetMap](https://www.openstreetmap.org/?mlat=42.56803&mlon=-84.53149#map=14/42.56803/-84.53149) (42.56803, -84.53149) - [Google Maps](https://www.google.com/maps/search/?api=1&query=42.56803,-84.53149) - [Source](https://3dhp.nationalmap.gov/arcgis/rest/services/usgs_3dhp_all/FeatureServer) (3dhp.nationalmap.gov) ## Pointing here - Default geometry of (1; `geo:hasDefaultGeometry`): - [Gretton Drain](https://ontology.bommaritollc.com/id/01a0ddfe-b6d7-7298-8826-437ad644a3fb) - Geometry of (1; `geo:hasGeometry`): - [Gretton Drain](https://ontology.bommaritollc.com/id/01a0ddfe-b6d7-7298-8826-437ad644a3fb) --- Also as: [Turtle](https://ontology.bommaritollc.com/id/01a0de2c-cae5-70c6-b9e0-a486158f81c6.ttl), [JSON-LD](https://ontology.bommaritollc.com/id/01a0de2c-cae5-70c6-b9e0-a486158f81c6.jsonld), [N-Triples](https://ontology.bommaritollc.com/id/01a0de2c-cae5-70c6-b9e0-a486158f81c6.nt), [HTML](https://ontology.bommaritollc.com/id/01a0de2c-cae5-70c6-b9e0-a486158f81c6) Cite as: shape of Gretton Drain. bc-ontology, release 0.1.0-rc15, 2026-09-28. https://ontology.bommaritollc.com/id/01a0de2c-cae5-70c6-b9e0-a486158f81c6 Release 0.1.0-rc15, graph hash 90961d0d6b29954f5f0257ebc2d1d12c6ce580def6a2f45cbf04d248aa879e72.