May be taken as approximate transformation NAD27 to WGS 84 - see code 8622.
US Coast & Geodetic Survey www.ngs.noaa.gov NADCON readme file
1999-10-20
Engineering survey, topographic mapping.
United States (USA) - California - Los Angeles county.
Cartesian 2D CS. Axes: easting, northing (X,Y). Orientations: east, north. UoM: ftUS.
8980249.16 8278203.88
7885367.78 7482906.87
10115082.05 9106350.09
-104.07 42.48
-96.43 45.95
Definition: OGC Well Known Text
PROJCS["NAD27 / California zone VII", GEOGCS["NAD27", DATUM["North_American_Datum_1927", SPHEROID["Clarke 1866",6378206.4,294.978698213898, AUTHORITY["EPSG","7008"]], AUTHORITY["EPSG","6267"]], PRIMEM["Greenwich",0, AUTHORITY["EPSG","8901"]], UNIT["degree",0.0174532925199433, AUTHORITY["EPSG","9122"]], AUTHORITY["EPSG","4267"]], PROJECTION["Lambert_Conformal_Conic_2SP"], PARAMETER["latitude_of_origin",34.1333333333333], PARAMETER["central_meridian",-118.333333333333], PARAMETER["standard_parallel_1",34.4166666666667], PARAMETER["standard_parallel_2",33.8666666666667], PARAMETER["false_easting",4186692.58], PARAMETER["false_northing",4160926.74], UNIT["US survey foot",0.304800609601219, AUTHORITY["EPSG","9003"]], AXIS["Easting",EAST], AXIS["Northing",NORTH], AUTHORITY["EPSG","26799"]]
Definition: OGC Well Known Text 2 (2019)
PROJCRS["NAD27 / California zone VII", BASEGEOGCRS["NAD27", DATUM["North American Datum 1927", ELLIPSOID["Clarke 1866",6378206.4,294.978698213898, LENGTHUNIT["metre",1]]], PRIMEM["Greenwich",0, ANGLEUNIT["degree",0.0174532925199433]], ID["EPSG",4267]], CONVERSION["California CS27 zone VII", METHOD["Lambert Conic Conformal (2SP)", ID["EPSG",9802]], PARAMETER["Latitude of false origin",34.1333333333333, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8821]], PARAMETER["Longitude of false origin",-118.333333333333, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8822]], PARAMETER["Latitude of 1st standard parallel",34.4166666666667, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8823]], PARAMETER["Latitude of 2nd standard parallel",33.8666666666667, ANGLEUNIT["degree",0.0174532925199433], ID["EPSG",8824]], PARAMETER["Easting at false origin",4186692.58, LENGTHUNIT["US survey foot",0.304800609601219], ID["EPSG",8826]], PARAMETER["Northing at false origin",4160926.74, LENGTHUNIT["US survey foot",0.304800609601219], ID["EPSG",8827]]], CS[Cartesian,2], AXIS["easting (X)",east, ORDER[1], LENGTHUNIT["US survey foot",0.304800609601219]], AXIS["northing (Y)",north, ORDER[2], LENGTHUNIT["US survey foot",0.304800609601219]], USAGE[ SCOPE["Engineering survey, topographic mapping."], AREA["United States (USA) - California - Los Angeles county."], BBOX[33.66,-118.96,34.83,-117.63]], ID["EPSG",26799]]
Definition: ESRI Well Known Text
PROJCS["NAD_1927_StatePlane_California_VII_FIPS_0407", 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["Lambert_Conformal_Conic"], PARAMETER["False_Easting",4186692.58], PARAMETER["False_Northing",4160926.74], PARAMETER["Central_Meridian",-118.333333333333], PARAMETER["Standard_Parallel_1",34.4166666666667], PARAMETER["Standard_Parallel_2",33.8666666666667], PARAMETER["Latitude_Of_Origin",34.1333333333333], UNIT["US survey foot",0.304800609601219]]
Definition: JSON
{ "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json", "type": "ProjectedCRS", "name": "NAD27 / California zone VII", "base_crs": { "name": "NAD27", "datum": { "type": "GeodeticReferenceFrame", "name": "North American Datum 1927", "ellipsoid": { "name": "Clarke 1866", "semi_major_axis": 6378206.4, "semi_minor_axis": 6356583.8 } }, "coordinate_system": { "subtype": "ellipsoidal", "axis": [ { "name": "Geodetic latitude", "abbreviation": "Lat", "direction": "north", "unit": "degree" }, { "name": "Geodetic longitude", "abbreviation": "Lon", "direction": "east", "unit": "degree" } ] }, "id": { "authority": "EPSG", "code": 4267 } }, "conversion": { "name": "California CS27 zone VII", "method": { "name": "Lambert Conic Conformal (2SP)", "id": { "authority": "EPSG", "code": 9802 } }, "parameters": [ { "name": "Latitude of false origin", "value": 34.1333333333333, "unit": "degree", "id": { "authority": "EPSG", "code": 8821 } }, { "name": "Longitude of false origin", "value": -118.333333333333, "unit": "degree", "id": { "authority": "EPSG", "code": 8822 } }, { "name": "Latitude of 1st standard parallel", "value": 34.4166666666667, "unit": "degree", "id": { "authority": "EPSG", "code": 8823 } }, { "name": "Latitude of 2nd standard parallel", "value": 33.8666666666667, "unit": "degree", "id": { "authority": "EPSG", "code": 8824 } }, { "name": "Easting at false origin", "value": 4186692.58, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8826 } }, { "name": "Northing at false origin", "value": 4160926.74, "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 }, "id": { "authority": "EPSG", "code": 8827 } } ] }, "coordinate_system": { "subtype": "Cartesian", "axis": [ { "name": "Easting", "abbreviation": "X", "direction": "east", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } }, { "name": "Northing", "abbreviation": "Y", "direction": "north", "unit": { "type": "LinearUnit", "name": "US survey foot", "conversion_factor": 0.304800609601219 } } ] }, "scope": "Engineering survey, topographic mapping.", "area": "United States (USA) - California - Los Angeles county.", "bbox": { "south_latitude": 33.66, "west_longitude": -118.96, "north_latitude": 34.83, "east_longitude": -117.63 }, "id": { "authority": "EPSG", "code": 26799 } }
Definition: GeoServer
26799=PROJCS["NAD27 / California zone VII",GEOGCS["NAD27",DATUM["North_American_Datum_1927",SPHEROID["Clarke 1866",6378206.4,294.978698213898,AUTHORITY["EPSG","7008"]],AUTHORITY["EPSG","6267"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4267"]],PROJECTION["Lambert_Conformal_Conic_2SP"],PARAMETER["latitude_of_origin",34.1333333333333],PARAMETER["central_meridian",-118.333333333333],PARAMETER["standard_parallel_1",34.4166666666667],PARAMETER["standard_parallel_2",33.8666666666667],PARAMETER["false_easting",4186692.58],PARAMETER["false_northing",4160926.74],UNIT["US survey foot",0.304800609601219,AUTHORITY["EPSG","9003"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","26799"]]
Definition: Mapnik
<?xml version="1.0" encoding="utf-8"?> <Map srs="+proj=lcc +lat_0=34.1333333333333 +lon_0=-118.333333333333 +lat_1=34.4166666666667 +lat_2=33.8666666666667 +x_0=1276106.4505969 +y_0=1268253.00685801 +datum=NAD27 +units=us-ft +no_defs +type=crs"> <Layer srs="+proj=lcc +lat_0=34.1333333333333 +lon_0=-118.333333333333 +lat_1=34.4166666666667 +lat_2=33.8666666666667 +x_0=1276106.4505969 +y_0=1268253.00685801 +datum=NAD27 +units=us-ft +no_defs +type=crs"> </Layer> </Map>
Definition: SQL (PostGIS)
INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values ( 26799, 'EPSG', 26799, '+proj=lcc +lat_0=34.1333333333333 +lon_0=-118.333333333333 +lat_1=34.4166666666667 +lat_2=33.8666666666667 +x_0=1276106.4505969 +y_0=1268253.00685801 +datum=NAD27 +units=us-ft +no_defs +type=crs', 'PROJCS["NAD27 / California zone VII",GEOGCS["NAD27",DATUM["North_American_Datum_1927",SPHEROID["Clarke 1866",6378206.4,294.978698213898,AUTHORITY["EPSG","7008"]],AUTHORITY["EPSG","6267"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4267"]],PROJECTION["Lambert_Conformal_Conic_2SP"],PARAMETER["latitude_of_origin",34.1333333333333],PARAMETER["central_meridian",-118.333333333333],PARAMETER["standard_parallel_1",34.4166666666667],PARAMETER["standard_parallel_2",33.8666666666667],PARAMETER["false_easting",4186692.58],PARAMETER["false_northing",4160926.74],UNIT["US survey foot",0.304800609601219,AUTHORITY["EPSG","9003"]],AXIS["Easting",EAST],AXIS["Northing",NORTH],AUTHORITY["EPSG","26799"]]');