EPSG:26712 NAD27 / UTM zone 12N
Projected system (Transverse Mercator) in use: North America - 114°W to 108°W and NAD27 by country. The full definition below, and conversion in one click.
| Code | EPSG:26712 |
|---|---|
| Name | NAD27 / UTM zone 12N |
| Type | Projected system — Transverse Mercator |
| Area of use |
North America - 114°W to 108°W and NAD27 by country North America - between 114°W and 108°W. Canada - Alberta; Northwest Territories; Nunavut; Saskatchewan. Mexico. United States (USA) - Arizona; Colorado; Idaho; Montana; New Mexico; Utah; Wyoming. Onshore for Mexican Pacific and Canadian Arctic coasts. |
| Bounds | W -114,00° · S 18,66° · E -108,00° · N 78,81° |
| Countries | Canada, Mexico, United States |
| Datum | North American Datum 1927 |
| Ellipsoid | Clarke 1866 a = 6378206.4 m · 1/f = 294.978698214 |
| Base geographic system | EPSG:4267 — NAD27 |
| Unit | metre (E east, N north) |
| Transformation to WGS 84 | NAD27 to WGS 84 (4) (EPSG:1173) — accuracy 10 m |
| Scope | Engineering survey, topographic mapping. |
Projection parameters
| Parameter | Value | Unit |
|---|---|---|
| Latitude of natural origin | 0 | degree |
| Longitude of natural origin | -111 | degree |
| Scale factor at natural origin | 0.9996 | unity |
| False easting | 500000 | metre |
| False northing | 0 | metre |
proj4 definition
+proj=utm +zone=12 +a=6378206.4000000004 +rf=294.9786982139 +units=m +towgs84=-8,160,176 +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:26712.
WKT (ESRI format, the .prj content)
PROJCS["NAD_1927_UTM_Zone_12N",GEOGCS["GCS_North_American_1927",DATUM["D_North_American_1927",SPHEROID["Clarke_1866",6378206.4,294.978698213898]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Transverse_Mercator"],PARAMETER["False_Easting",500000.0],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",-111.0],PARAMETER["Scale_Factor",0.9996],PARAMETER["Latitude_Of_Origin",0.0],UNIT["Meter",1.0]]Other systems — Canada
- EPSG:26707NAD27 / UTM zone 7N
- EPSG:26708NAD27 / UTM zone 8N
- EPSG:26709NAD27 / UTM zone 9N
- EPSG:26710NAD27 / UTM zone 10N
- EPSG:26711NAD27 / UTM zone 11N
- EPSG:26713NAD27 / UTM zone 13N
- EPSG:26714NAD27 / UTM zone 14N
- EPSG:26719NAD27 / UTM zone 19N
- EPSG:26720NAD27 / UTM zone 20N
- EPSG:26721NAD27 / UTM zone 21N
- EPSG:26722NAD27 / UTM zone 22N
- EPSG:26891NAD83(CSRS) / MTM zone 11
- EPSG:26892NAD83(CSRS) / MTM zone 12
- EPSG:26893NAD83(CSRS) / MTM zone 13
- EPSG:26894NAD83(CSRS) / MTM zone 14
- EPSG:26895NAD83(CSRS) / MTM zone 15
- EPSG:26896NAD83(CSRS) / MTM zone 16
- EPSG:26897NAD83(CSRS) / MTM zone 17
Source: EPSG registry v11.022 (IOGP), through the PROJ database. Always check a code on epsg.org before contractual work.