Geodetic CRS: NAD27 + NGVD29 height (ftUS)
Data source: EPSG
Information source: IOGP
Revision date: 2018-05-29
Scope: Engineering survey, topographic mapping.
Center coordinates
-95.85 36.89
Projected bounds:
-124.79 24.41
-66.91 49.38
WGS84 bounds:
-124.79 24.41
-66.91 49.38
Definition: Well Known Text (WKT)
COMPD_CS["NAD27 + NGVD29 height (ftUS)", GEOGCS["NAD27", DATUM["North_American_Datum_1927", SPHEROID["Clarke 1866",6378206.4,294.978698213898]], PRIMEM["Greenwich",0], UNIT["degree",0.0174532925199433]], VERT_CS["NGVD29 height (ftUS)", VERT_DATUM["National Geodetic Vertical Datum 1929",2005], UNIT["US survey foot",0.304800609601219], AXIS["Gravity-related height",UP]], AUTHORITY["EPSG","7406"]]
Definition: ESRI WKT
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]],VERTCS["NGVD_1929",VDATUM["National_Geodetic_Vertical_Datum_1929"],PARAMETER["Vertical_Shift",0.0],PARAMETER["Direction",1.0],UNIT["US survey foot",0.304800609601219]]
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.4/projjson.schema.json", "type": "CompoundCRS", "name": "NAD27 + NGVD29 height (ftUS)", "components": [ { "type": "GeographicCRS", "name": "NAD27", "datum": { "type": "GeodeticReferenceFrame", "name": "North American Datum 1927", "ellipsoid": { "name": "Clarke 1866", "semi_major_axis": 6378206.4, "inverse_flattening": 294.978698213898 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] } }, { "type": "VerticalCRS", "name": "NGVD29 height (ftUS)", "datum": { "type": "VerticalReferenceFrame", "name": "National Geodetic Vertical Datum 1929" }, "coordinate_system": { "subtype": "vertical", "axis": [ { "name": "Gravity-related height", "abbreviation": "H", "direction": "up", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] } } ], "scope": "Engineering survey, topographic mapping.", "area": "United States (USA) - CONUS onshore - Alabama; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming.", "bbox": { "south_latitude": 24.41, "west_longitude": -124.79, "north_latitude": 49.38, "east_longitude": -66.91 }, "id": { "authority": "EPSG", "code": 7406 } }
Definition: GeoServer
7406=COMPD_CS["NAD27 + NGVD29 height (ftUS)",GEOGCS["NAD27",DATUM["North_American_Datum_1927",SPHEROID["Clarke 1866",6378206.4,294.978698213898]],PRIMEM["Greenwich",0],UNIT["degree",0.0174532925199433]],VERT_CS["NGVD29 height (ftUS)",VERT_DATUM["National Geodetic Vertical Datum 1929",2005],UNIT["US survey foot",0.304800609601219],AXIS["Gravity-related height",UP]],AUTHORITY["EPSG","7406"]]
Definition: Mapnik
<?xml version="1.0" encoding="utf-8"?> <Map srs="+proj=longlat +datum=NAD27 +vunits=us-ft +no_defs +type=crs"> <Layer srs="+proj=longlat +datum=NAD27 +vunits=us-ft +no_defs +type=crs"> </Layer> </Map>
Definition: SQL (PostGIS)
INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 7406, 'EPSG', 7406, '+proj=longlat +datum=NAD27 +vunits=us-ft +no_defs +type=crs', 'COMPD_CS["NAD27 + NGVD29 height (ftUS)",GEOGCS["NAD27",DATUM["North_American_Datum_1927",SPHEROID["Clarke 1866",6378206.4,294.978698213898]],PRIMEM["Greenwich",0],UNIT["degree",0.0174532925199433]],VERT_CS["NGVD29 height (ftUS)",VERT_DATUM["National Geodetic Vertical Datum 1929",2005],UNIT["US survey foot",0.304800609601219],AXIS["Gravity-related height",UP]],AUTHORITY["EPSG","7406"]]');
Definition: OGC WKT
COMPD_CS["NAD27 + NGVD29 height (ftUS)",GEOGCS["NAD27",DATUM["North_American_Datum_1927",SPHEROID["Clarke 1866",6378206.4,294.978698213898]],PRIMEM["Greenwich",0],UNIT["degree",0.0174532925199433]],VERT_CS["NGVD29 height (ftUS)",VERT_DATUM["National Geodetic Vertical Datum 1929",2005],UNIT["US survey foot",0.304800609601219],AXIS["Gravity-related height",UP]],AUTHORITY["EPSG","7406"]]
Definition: OGC WKT 2 (2019)
COMPOUNDCRS["NAD27 + NGVD29 height (ftUS)",GEOGCRS["NAD27",DATUM["North American Datum 1927",ELLIPSOID["Clarke 1866",6378206.4,294.978698213898,LENGTHUNIT["metre",1]]],PRIMEM["Greenwich",0,ANGLEUNIT["degree",0.0174532925199433]],CS[ellipsoidal,2],AXIS["geodetic latitude (Lat)",north,ORDER[1],ANGLEUNIT["degree",0.0174532925199433]],AXIS["geodetic longitude (Lon)",east,ORDER[2],ANGLEUNIT["degree",0.0174532925199433]]],VERTCRS["NGVD29 height (ftUS)",VDATUM["National Geodetic Vertical Datum 1929"],CS[vertical,1],AXIS["gravity-related height (H)",up,LENGTHUNIT["US survey foot",0.304800609601219]]],USAGE[SCOPE["Engineering survey, topographic mapping."],AREA["United States (USA) - CONUS onshore - Alabama; Arizona; Arkansas; California; Colorado; Connecticut; Delaware; Florida; Georgia; Idaho; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Montana; Nebraska; Nevada; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Oregon; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Utah; Vermont; Virginia; Washington; West Virginia; Wisconsin; Wyoming."],BBOX[24.41,-124.79,49.38,-66.91]],ID["EPSG",7406]]