US survey foot
Engineering survey, topographic mapping.
None
United States (USA) - Michigan - counties of Alger; Allegan; Antrim; Barry; Benzie; Berrien; Branch; Calhoun; Cass; Charlevoix; Clare; Delta; Eaton; Emmet; Grand Traverse; Ionia; Isabella; Kalamazoo; Kalkaska; Kent; Lake; Leelanau; Luce; Mackinac; Manistee; Mason; Mecosta; Missaukee; Montcalm; Muskegon; Newaygo; Oceana; Osceola; Ottawa; St Joseph; Schoolcraft; Van Buren; Wexford.
Data Source: EPSG v11.016 2024-08-31
Datum: NAD27 Michigan
Coordinate System: cartesian
Projection: Michigan State Plane Old Central zone
Geodetic CRS: NAD27 Michigan
PROJCRS["NAD Michigan / Michigan Old Central",
BASEGEOGCRS["NAD27 Michigan",
DATUM["NAD27 Michigan",
ELLIPSOID["Clarke 1866 Michigan",20926631.531,294.978697164677,
LENGTHUNIT["US survey foot",0.304800609601219]]],
PRIMEM["Greenwich",0,
ANGLEUNIT["degree",0.0174532925199433]],
ID["EPSG",4268]],
CONVERSION["Michigan State Plane Old Central zone",
METHOD["Transverse Mercator",
ID["EPSG",9807]],
PARAMETER["Latitude of natural origin",41.5,
ANGLEUNIT["degree",0.0174532925199433],
ID["EPSG",8801]],
PARAMETER["Longitude of natural origin",-85.75,
ANGLEUNIT["degree",0.0174532925199433],
ID["EPSG",8802]],
PARAMETER["Scale factor at natural origin",0.999909091,
SCALEUNIT["unity",1],
ID["EPSG",8805]],
PARAMETER["False easting",500000,
LENGTHUNIT["US survey foot",0.304800609601219],
ID["EPSG",8806]],
PARAMETER["False northing",0,
LENGTHUNIT["US survey foot",0.304800609601219],
ID["EPSG",8807]]],
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) - Michigan - counties of Alger; Allegan; Antrim; Barry; Benzie; Berrien; Branch; Calhoun; Cass; Charlevoix; Clare; Delta; Eaton; Emmet; Grand Traverse; Ionia; Isabella; Kalamazoo; Kalkaska; Kent; Lake; Leelanau; Luce; Mackinac; Manistee; Mason; Mecosta; Missaukee; Montcalm; Muskegon; Newaygo; Oceana; Osceola; Ottawa; St Joseph; Schoolcraft; Van Buren; Wexford."],
BBOX[41.75,-87.61,46.11,-84.6]],
ID["EPSG",26802]]
{
"$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
"type": "ProjectedCRS",
"name": "NAD Michigan / Michigan Old Central",
"base_crs": {
"name": "NAD27 Michigan",
"datum": {
"type": "GeodeticReferenceFrame",
"name": "NAD27 Michigan",
"ellipsoid": {
"name": "Clarke 1866 Michigan",
"semi_major_axis": {
"value": 20926631.531,
"unit": {
"type": "LinearUnit",
"name": "US survey foot",
"conversion_factor": 0.304800609601219
}
},
"semi_minor_axis": {
"value": 20855688.674,
"unit": {
"type": "LinearUnit",
"name": "US survey foot",
"conversion_factor": 0.304800609601219
}
}
}
},
"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": 4268
}
},
"conversion": {
"name": "Michigan State Plane Old Central zone",
"method": {
"name": "Transverse Mercator",
"id": {
"authority": "EPSG",
"code": 9807
}
},
"parameters": [
{
"name": "Latitude of natural origin",
"value": 41.5,
"unit": "degree",
"id": {
"authority": "EPSG",
"code": 8801
}
},
{
"name": "Longitude of natural origin",
"value": -85.75,
"unit": "degree",
"id": {
"authority": "EPSG",
"code": 8802
}
},
{
"name": "Scale factor at natural origin",
"value": 0.999909091,
"unit": "unity",
"id": {
"authority": "EPSG",
"code": 8805
}
},
{
"name": "False easting",
"value": 500000,
"unit": {
"type": "LinearUnit",
"name": "US survey foot",
"conversion_factor": 0.304800609601219
},
"id": {
"authority": "EPSG",
"code": 8806
}
},
{
"name": "False northing",
"value": 0,
"unit": {
"type": "LinearUnit",
"name": "US survey foot",
"conversion_factor": 0.304800609601219
},
"id": {
"authority": "EPSG",
"code": 8807
}
}
]
},
"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) - Michigan - counties of Alger; Allegan; Antrim; Barry; Benzie; Berrien; Branch; Calhoun; Cass; Charlevoix; Clare; Delta; Eaton; Emmet; Grand Traverse; Ionia; Isabella; Kalamazoo; Kalkaska; Kent; Lake; Leelanau; Luce; Mackinac; Manistee; Mason; Mecosta; Missaukee; Montcalm; Muskegon; Newaygo; Oceana; Osceola; Ottawa; St Joseph; Schoolcraft; Van Buren; Wexford.",
"bbox": {
"south_latitude": 41.75,
"west_longitude": -87.61,
"north_latitude": 46.11,
"east_longitude": -84.6
},
"id": {
"authority": "EPSG",
"code": 26802
}
}
{'crs_wkt': 'PROJCRS["NAD Michigan / Michigan Old Central",BASEGEOGCRS["NAD27 '
'Michigan",DATUM["NAD27 Michigan",ELLIPSOID["Clarke 1866 '
'Michigan",20926631.531,294.978697164677,LENGTHUNIT["US survey '
'foot",0.304800609601219]]],PRIMEM["Greenwich",0,ANGLEUNIT["degree",0.0174532925199433]],ID["EPSG",4268]],CONVERSION["Michigan '
'State Plane Old Central zone",METHOD["Transverse '
'Mercator",ID["EPSG",9807]],PARAMETER["Latitude of natural '
'origin",41.5,ANGLEUNIT["degree",0.0174532925199433],ID["EPSG",8801]],PARAMETER["Longitude '
'of natural '
'origin",-85.75,ANGLEUNIT["degree",0.0174532925199433],ID["EPSG",8802]],PARAMETER["Scale '
'factor at natural '
'origin",0.999909091,SCALEUNIT["unity",1],ID["EPSG",8805]],PARAMETER["False '
'easting",500000,LENGTHUNIT["US survey '
'foot",0.304800609601219],ID["EPSG",8806]],PARAMETER["False '
'northing",0,LENGTHUNIT["US survey '
'foot",0.304800609601219],ID["EPSG",8807]]],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) - Michigan - '
'counties of Alger; Allegan; Antrim; Barry; Benzie; Berrien; '
'Branch; Calhoun; Cass; Charlevoix; Clare; Delta; Eaton; Emmet; '
'Grand Traverse; Ionia; Isabella; Kalamazoo; Kalkaska; Kent; Lake; '
'Leelanau; Luce; Mackinac; Manistee; Mason; Mecosta; Missaukee; '
'Montcalm; Muskegon; Newaygo; Oceana; Osceola; Ottawa; St Joseph; '
'Schoolcraft; Van Buren; '
'Wexford."],BBOX[41.75,-87.61,46.11,-84.6]],ID["EPSG",26802]]',
'false_easting': 500000.0,
'false_northing': 0.0,
'geographic_crs_name': 'NAD27 Michigan',
'grid_mapping_name': 'transverse_mercator',
'horizontal_datum_name': 'NAD27 Michigan',
'inverse_flattening': 294.97869716467716,
'latitude_of_projection_origin': 41.5,
'longitude_of_central_meridian': -85.75,
'longitude_of_prime_meridian': 0.0,
'prime_meridian_name': 'Greenwich',
'projected_crs_name': 'NAD Michigan / Michigan Old Central',
'reference_ellipsoid_name': 'Clarke 1866 Michigan',
'scale_factor_at_central_meridian': 0.999909091,
'semi_major_axis': 6378450.047548896,
'semi_minor_axis': 6356826.621488444}