# shape of East Alton

shape of East Alton is a boundary representation.

IRI: <https://ontology.bommaritollc.com/id/01a0d1a8-df8f-75b9-a4b9-6d7312bfc890>

Type: [geo:Geometry](http://www.opengis.net/ont/geosparql#Geometry), [boundary representation](https://ontology.bommaritollc.com/vocab/geo/BoundaryRepresentation)

Location: 38.88373, -90.11162 (box -90.14916, 38.85809, -90.07408, 38.90938; west, south, east, north)

- `adms:identifier`: [census-tiger-feature 2025/1600000US1721553](https://ontology.bommaritollc.com/id/01a0d1a8-df90-755f-96ce-0579b786eb0d)
- `dcterms:date`: 2025-01-01 (xsd:date)
- `dcterms:source`: [Census TIGER/Line 2025: places, state 17](https://ontology.bommaritollc.com/id/01a0d1a7-ff14-7108-90b2-44d74d759a9b)
- `geo:asWKT`: <http://www.opengis.net/def/crs/OGC/1.3/CRS83> POLYGON ((-90.149055 38.871412, -90.139359 38.867199, -90.137799 38.866068, -90.138853 38.86493, -90.135288 38.862631, -90.128773 38.860247, -90.128244 38.859394, -90.125004 38.858085, -90.124323 38.859481, -90.12434 38.863172, -90.119579 38.863119, -90.118546 38.863641, -90.118629 38.864666, -90.117548 38.866091, -90.117522 38.86877, -90.105832 38.862287, -90.105842 38.866059, -90.108626 38.8705, -90.108935 38.873066, -90.105413 38.873186, -90.106196 38.87474, -90.100971 38.875049, -90.100198 38.87464, -90.100182 38.875092, -90.096978 38.875273, -90.097059 38.877318, -90.092935 38.877668, -90.093004 38.879043, -90.092202 38.87895, -90.092309 38.880958, -90.091612 38.88139, -90.090803 38.88128, -90.090688 38.879048, -90.086578 38.879033, -90.085946 38.880299, -90.086437 38.880606, -90.085816 38.882521, -90.085167 38.883101, -90.082706 38.882651, -90.08276 38.885686, -90.082078 38.885903, -90.08208 38.886364, -90.082699 38.886359, -90.082787 38.888332, -90.081603 38.888336, -90.081638 38.89007, -90.07805 38.890105, -90.078523 38.895757, -90.077669 38.896036, -90.077153 38.895039, -90.075823 38.895281, -90.075861 38.896371, -90.076327 38.896362, -90.076419 38.899529, -90.075411 38.899545, -90.075318 38.899824, -90.074291 38.899574, -90.074082 38.900864, -90.075921 38.900886, -90.07591 38.90044, -90.076611 38.90008, -90.076624 38.900422, -90.07852 38.900783, -90.078552 38.901144, -90.080235 38.901192, -90.079512 38.9051, -90.080323 38.905373, -90.080536 38.9046, -90.081045 38.904706, -90.080816 38.905544, -90.082731 38.906182, -90.083163 38.904884, -90.085764 38.90486, -90.085884 38.907555, -90.087687 38.908222, -90.088274 38.908386, -90.088441 38.908006, -90.090612 38.908413, -90.098343 38.908603, -90.101955 38.909382, -90.101944 38.908498, -90.101465 38.908514, -90.101444 38.897372, -90.103899 38.897054, -90.103678 38.896416, -90.105528 38.895986, -90.108799 38.896691, -90.109497 38.896527, -90.110091 38.898118, -90.112375 38.898655, -90.115319 38.897146, -90.11474 38.895126, -90.115812 38.893808, -90.113691 38.893487, -90.113488 38.892315, -90.112541 38.89153, -90.113658 38.891471, -90.114975 38.890732, -90.117279 38.890157, -90.121791 38.885249, -90.122338 38.884329, -90.121696 38.884052, -90.12226 38.882764, -90.123296 38.882944, -90.124824 38.88061, -90.127297 38.87397, -90.126038 38.873406, -90.126167 38.8731, -90.12755 38.873675, -90.128582 38.872017, -90.127955 38.870677, -90.129555 38.870654, -90.130329 38.872244, -90.133889 38.875212, -90.131308 38.877984, -90.136617 38.877937, -90.136586 38.877064, -90.139451 38.87792, -90.139422 38.878786, -90.142156 38.878802, -90.142304 38.878359, -90.138579 38.877239, -90.138558 38.875187, -90.14391 38.872996, -90.143969 38.874912, -90.149161 38.874916, -90.149055 38.871412)) (geo:wktLiteral)
- `geo:hasMetricArea`: 14180358 (xsd:double)
- `prov:wasDerivedFrom`: [evidence from https://www2.census.gov/geo/tiger/TIGER2025/PLACE/tl\_2025\_17\_place.zip](https://ontology.bommaritollc.com/id/01a0d1a8-df8f-75b9-a4b9-6d727a71e14b)
- **simplification tolerance** (`bcgeo:simplificationTolerance`): 25 (xsd:double)

## Elsewhere

- [OpenStreetMap](https://www.openstreetmap.org/?mlat=38.88373&mlon=-90.11162#map=14/38.88373/-90.11162) (38.88373, -90.11162)
- [Google Maps](https://www.google.com/maps/search/?api=1&query=38.88373,-90.11162)
- [Source](https://www2.census.gov/geo/tiger/TIGER2025/PLACE/tl_2025_17_place.zip) (www2.census.gov)

## Pointing here

- Default geometry of (1; `geo:hasDefaultGeometry`):
  - [East Alton](https://ontology.bommaritollc.com/id/01a0ca47-9a3e-75e2-a3d4-48469ee21c9e)
- Geometry of (1; `geo:hasGeometry`):
  - [East Alton](https://ontology.bommaritollc.com/id/01a0ca47-9a3e-75e2-a3d4-48469ee21c9e)

---
Also as: [Turtle](https://ontology.bommaritollc.com/id/01a0d1a8-df8f-75b9-a4b9-6d7312bfc890.ttl), [JSON-LD](https://ontology.bommaritollc.com/id/01a0d1a8-df8f-75b9-a4b9-6d7312bfc890.jsonld), [N-Triples](https://ontology.bommaritollc.com/id/01a0d1a8-df8f-75b9-a4b9-6d7312bfc890.nt), [HTML](https://ontology.bommaritollc.com/id/01a0d1a8-df8f-75b9-a4b9-6d7312bfc890)
Cite as: shape of East Alton. bc-ontology, release 0.1.0-rc12, 2026-09-27. https://ontology.bommaritollc.com/id/01a0d1a8-df8f-75b9-a4b9-6d7312bfc890
Release 0.1.0-rc12, graph hash a20f66b983549f220c6f061b7e40233771a06aa47a0c0aede95a2a57ee2e9553.