# Upper Dam Lake

Upper Dam Lake is a reservoir in [Duncan Township](https://ontology.bommaritollc.com/id/01a0ca47-6e52-7420-938c-d1cfede845fb), [Houghton County](https://ontology.bommaritollc.com/id/01a0ca47-5837-77b7-8da4-931131405a4c), [Michigan](https://ontology.bommaritollc.com/id/01a0ca47-57ff-7219-9e2f-cdc1b39bd0fa) (6.8 ha), in the [East Branch Ontonagon River (HUC10 0402010203)](https://ontology.bommaritollc.com/id/01a0de92-1c29-7786-aac7-80b5ae1fdec3) watershed.

IRI: <https://ontology.bommaritollc.com/id/01a0ddfe-d925-768d-9d35-19ff8548e778>

Within: [Michigan](https://ontology.bommaritollc.com/id/01a0ca47-57ff-7219-9e2f-cdc1b39bd0fa) › [Houghton County](https://ontology.bommaritollc.com/id/01a0ca47-5837-77b7-8da4-931131405a4c) › [Duncan Township](https://ontology.bommaritollc.com/id/01a0ca47-6e52-7420-938c-d1cfede845fb)

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

Location: 46.42532, -88.73827 (box -88.74458, 46.42074, -88.73359, 46.42836; west, south, east, north)

- `adms:identifier`: [gnis 1621998](https://ontology.bommaritollc.com/id/01a0ddfe-d926-7693-885e-813d62529de3)
- `dcterms:type`: [reservoir](https://ontology.bommaritollc.com/vocab/geo/gnisReservoir)
- `geo:hasDefaultGeometry`: [shape of Upper Dam Lake](https://ontology.bommaritollc.com/id/01a0de2c-df80-775a-bacd-a4345a82a440)
- `geo:hasGeometry`:
  - [point of Upper Dam Lake](https://ontology.bommaritollc.com/id/01a0ddff-1673-706e-ba3b-31e49cea103d)
  - [shape of Upper Dam Lake](https://ontology.bommaritollc.com/id/01a0de2c-df80-775a-bacd-a4345a82a440)
- `geo:hasMetricArea`: 67861.6 (xsd:double)
- **in watershed** (`bcgeo:inWatershed`): [East Branch Ontonagon River (HUC10 0402010203)](https://ontology.bommaritollc.com/id/01a0de92-1c29-7786-aac7-80b5ae1fdec3)
- `prov:wasDerivedFrom`:
  - [evidence from https://prd-tnm.s3.amazonaws.com/StagedProducts/GeographicNames/DomesticNames/DomesticNames\_MI\_Text.zip](https://ontology.bommaritollc.com/id/01a0ddfe-d925-768d-9d35-19fef7ac5137)
  - [evidence from https://3dhp.nationalmap.gov/arcgis/rest/services/usgs\_3dhp\_all/FeatureServer](https://ontology.bommaritollc.com/id/01a0de32-6876-7237-85f6-7332164e40c0)
  - [evidence from https://hydro.nationalmap.gov/arcgis/rest/services/wbd/MapServer](https://ontology.bommaritollc.com/id/01a0de92-156a-7260-a346-dd6d5615c790)
- `schema:containedInPlace`:
  - [Houghton County](https://ontology.bommaritollc.com/id/01a0ca47-5837-77b7-8da4-931131405a4c)
  - [Duncan Township](https://ontology.bommaritollc.com/id/01a0ca47-6e52-7420-938c-d1cfede845fb)
- `skos:prefLabel`: Upper Dam Lake

## Elsewhere

- [USGS GNIS 1621998](https://edits.nationalmap.gov/apps/gaz-domestic/public/summary/1621998) (gnis)
- [OpenStreetMap](https://www.openstreetmap.org/?mlat=46.42532&mlon=-88.73827#map=14/46.42532/-88.73827) (46.42532, -88.73827)
- [Google Maps](https://www.google.com/maps/search/?api=1&query=46.42532,-88.73827)
- [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)

---
Also as: [Turtle](https://ontology.bommaritollc.com/id/01a0ddfe-d925-768d-9d35-19ff8548e778.ttl), [JSON-LD](https://ontology.bommaritollc.com/id/01a0ddfe-d925-768d-9d35-19ff8548e778.jsonld), [N-Triples](https://ontology.bommaritollc.com/id/01a0ddfe-d925-768d-9d35-19ff8548e778.nt), [HTML](https://ontology.bommaritollc.com/id/01a0ddfe-d925-768d-9d35-19ff8548e778)
Cite as: Upper Dam Lake. bc-ontology, release 0.1.0-rc12, 2026-09-27. https://ontology.bommaritollc.com/id/01a0ddfe-d925-768d-9d35-19ff8548e778
Release 0.1.0-rc12, graph hash a20f66b983549f220c6f061b7e40233771a06aa47a0c0aede95a2a57ee2e9553.