Pre-release: this release has not been published. Identifiers are permanent; descriptions may still change.

Grass Island

https://ontology.bommaritollc.com/id/01a0ddfe-b633-752d-922d-1dcaead8ff48

Cite this

Grass Island. bc-ontology, release 0.1.0-rc12, 2026-09-27. https://ontology.bommaritollc.com/id/01a0ddfe-b633-752d-922d-1dcaead8ff48

Drawn from the release's geometry, simplified for the screen; base map © OpenStreetMap contributors or USGS.

Elsewhere

Wikidata Q49639512proposed match (exactMatch)

OpenStreetMap42.59781, -82.78158

Sourceprd-tnm.s3.amazonaws.com

Source3dhp.nationalmap.gov

Sourcehydro.nationalmap.gov

adms:identifier	gnis 627173
dcterms:type	island
geo:hasDefaultGeometry	point of Grass Island
geo:hasGeometry	point of Grass Island
in watershed	Lake St. Clair (HUC10 0409000210)
prov:wasDerivedFrom	evidence from https://prd-tnm.s3.amazonaws.com/StagedProducts/GeographicNames/DomesticNames/DomesticNames_MI_Text.zip evidence from https://3dhp.nationalmap.gov/arcgis/rest/services/usgs_3dhp_all/FeatureServer evidence from https://3dhp.nationalmap.gov/arcgis/rest/services/usgs_3dhp_all/FeatureServer evidence from https://hydro.nationalmap.gov/arcgis/rest/services/wbd/MapServer
schema:containedInPlace	Macomb County Harrison Township Lake Saint Clair
skos:altLabel	Gross Islanden
skos:prefLabel	Grass Islanden