EPSG:23307 NAD83(2011) / ICS83-Ottawa (ftUS)
Projected system (Lambert Conic Conformal (1SP)) in use: USA - Illinois - Bureau, Grundy, LaSalle, Putnam. The full definition below, and conversion in one click.
| Code | EPSG:23307 |
|---|---|
| Name | NAD83(2011) / ICS83-Ottawa (ftUS) |
| Type | Projected system — Lambert Conic Conformal (1SP) |
| Area of use |
USA - Illinois - Bureau, Grundy, LaSalle, Putnam United States (USA) - Illinois - counties of Bureau, Grundy, LaSalle and Putnam. |
| Bounds | W -89,87° · S 40,92° · E -88,24° · N 41,64° |
| Countries | United States |
| Datum | NAD83 (National Spatial Reference System 2011) |
| Ellipsoid | GRS 1980 a = 6378137 m · 1/f = 298.257222101 |
| Base geographic system | EPSG:6318 — NAD83(2011) |
| Unit | US survey foot (N north, E east) |
| Transformation to WGS 84 | NAD83(2011) to WGS 84 (1) (EPSG:9774) — accuracy 2 m |
| Scope | Engineering survey, topographic mapping (large and medium scale). |
Projection parameters
| Parameter | Value | Unit |
|---|---|---|
| Latitude of natural origin | 41.3 | degree |
| Longitude of natural origin | -89.05 | degree |
| Scale factor at natural origin | 1.000023 | unity |
| False easting | 7743000 | US survey foot |
| False northing | 755000 | US survey foot |
proj4 definition
+proj=lcc +lat_1=41.3 +lat_0=41.3 +lon_0=-89.05 +k_0=1.000023 +x_0=2360071.12014224 +y_0=230124.460248921 +ellps=GRS80 +units=us-ft +towgs84=0,0,0 +no_defsPaste it into QGIS, proj4js, PostGIS (spatial_ref_sys) or GDAL. +towgs84 carries the EPSG transformation to WGS 84; the official code stays EPSG:23307.
WKT (ESRI format, the .prj content)
PROJCS["NAD_1983_(2011)_ICS_Ottawa_(US_Feet)",GEOGCS["GCS_NAD_1983_2011",DATUM["D_NAD_1983_2011",SPHEROID["GRS_1980",6378137.0,298.257222101]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Lambert_Conformal_Conic"],PARAMETER["False_Easting",7743000.0],PARAMETER["False_Northing",755000.0],PARAMETER["Central_Meridian",-89.05],PARAMETER["Standard_Parallel_1",41.3],PARAMETER["Scale_Factor",1.000023],PARAMETER["Latitude_Of_Origin",41.3],UNIT["US survey foot",0.304800609601219]]Other systems — United States
- EPSG:23301NAD83(2011) / ICS83-Freeport (ftUS)
- EPSG:23302NAD83(2011) / ICS83-Rockford (ftUS)
- EPSG:23303NAD83(2011) / ICS83-Aurora (ftUS)
- EPSG:23304NAD83(2011) / ICS83-Chicago (ftUS)
- EPSG:23305NAD83(2011) / ICS83-Moline (ftUS)
- EPSG:23306NAD83(2011) / ICS83-Sterling (ftUS)
- EPSG:23308NAD83(2011) / ICS83-Joliet (ftUS)
- EPSG:23309NAD83(2011) / ICS83-Monmouth (ftUS)
- EPSG:23310NAD83(2011) / ICS83-Galesburg (ftUS)
- EPSG:23311NAD83(2011) / ICS83-Peoria (ftUS)
- EPSG:23312NAD83(2011) / ICS83-Eureka (ftUS)
- EPSG:23313NAD83(2011) / ICS83-Bloomington (ftUS)
- EPSG:23314NAD83(2011) / ICS83-Pontiac (ftUS)
- EPSG:23315NAD83(2011) / ICS83-Watseka (ftUS)
- EPSG:23316NAD83(2011) / ICS83-Quincy (ftUS)
- EPSG:23317NAD83(2011) / ICS83-Macomb (ftUS)
- EPSG:23318NAD83(2011) / ICS83-Lincoln (ftUS)
- EPSG:23319NAD83(2011) / ICS83-Decatur (ftUS)
Source: EPSG registry v11.022 (IOGP), through the PROJ database. Always check a code on epsg.org before contractual work.