EPSG:6428 NAD83(2011) / Colorado Central (ftUS)
Projected system (Lambert Conic Conformal (2SP)) in use: USA - Colorado - SPCS - C. The full definition below, and conversion in one click.
| Code | EPSG:6428 |
|---|---|
| Name | NAD83(2011) / Colorado Central (ftUS) |
| Type | Projected system — Lambert Conic Conformal (2SP) |
| Area of use |
USA - Colorado - SPCS - C United States (USA) - Colorado - counties Arapahoe; Chaffee; Cheyenne; Clear Creek; Delta; Denver; Douglas; Eagle; El Paso; Elbert; Fremont; Garfield; Gunnison; Jefferson; Kit Carson; Lake; Lincoln; Mesa; Park; Pitkin; Summit; Teller. |
| Bounds | W -109,06° · S 38,14° · E -102,04° · N 40,09° |
| 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 (X east, Y north) |
| Transformation to WGS 84 | NAD83(2011) to WGS 84 (1) (EPSG:9774) — accuracy 2 m |
| Scope | Engineering survey, topographic mapping. |
Projection parameters
| Parameter | Value | Unit |
|---|---|---|
| Latitude of false origin | 37.833333333333336 | degree |
| Longitude of false origin | -105.5 | degree |
| Latitude of 1st standard parallel | 39.75 | degree |
| Latitude of 2nd standard parallel | 38.45 | degree |
| Easting at false origin | 3000000 | US survey foot |
| Northing at false origin | 1000000 | US survey foot |
proj4 definition
+proj=lcc +lat_0=37.8333333333333 +lon_0=-105.5 +lat_1=39.75 +lat_2=38.45 +x_0=914401.828803658 +y_0=304800.609601219 +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:6428.
WKT (ESRI format, the .prj content)
PROJCS["NAD_1983_2011_StatePlane_Colorado_Central_FIPS_0502_Ft_US",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",3000000.0],PARAMETER["False_Northing",1000000.0],PARAMETER["Central_Meridian",-105.5],PARAMETER["Standard_Parallel_1",39.75],PARAMETER["Standard_Parallel_2",38.45],PARAMETER["Latitude_Of_Origin",37.8333333333333],UNIT["US survey foot",0.304800609601219]]Other systems — United States
- EPSG:6419NAD83(2011) / California zone 3
- EPSG:6420NAD83(2011) / California zone 3 (ftUS)
- EPSG:6421NAD83(2011) / California zone 4
- EPSG:6422NAD83(2011) / California zone 4 (ftUS)
- EPSG:6423NAD83(2011) / California zone 5
- EPSG:6424NAD83(2011) / California zone 5 (ftUS)
- EPSG:6425NAD83(2011) / California zone 6
- EPSG:6426NAD83(2011) / California zone 6 (ftUS)
- EPSG:6427NAD83(2011) / Colorado Central
- EPSG:6429NAD83(2011) / Colorado North
- EPSG:6430NAD83(2011) / Colorado North (ftUS)
- EPSG:6431NAD83(2011) / Colorado South
- EPSG:6432NAD83(2011) / Colorado South (ftUS)
- EPSG:6433NAD83(2011) / Connecticut
- EPSG:6434NAD83(2011) / Connecticut (ftUS)
- EPSG:6435NAD83(2011) / Delaware
- EPSG:6436NAD83(2011) / Delaware (ftUS)
- EPSG:6437NAD83(2011) / Florida East
Source: EPSG registry v11.022 (IOGP), through the PROJ database. Always check a code on epsg.org before contractual work.