Datum: North American Datum 1927

Geodetic Datum used in North America - NAD27

North American Datum 1927 is a geodetic datum first defined in 1927 and is suitable for use in North and central America: Antigua and Barbuda. Bahamas. Belize. British Virgin Islands. Canada - Alberta; British Columbia; Manitoba; New Brunswick; Newfoundland and Labrador; Northwest Territories; Nova Scotia; Nunavut; Ontario; Prince Edward Island; Quebec; Saskatchewan; Yukon. Cuba. El Salvador. Guatemala. Honduras. Puerto Rico. Mexico. Nicaragua. United States (USA) - Alabama; Alaska; 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. US Virgin Islands. Usage shall be onshore only except that onshore and offshore shall apply to Canada east coast (New Brunswick; Newfoundland and Labrador; Prince Edward Island; Quebec). Cuba. Mexico (Gulf of Mexico and Caribbean coasts only). USA Alaska. USA Gulf of Mexico (Alabama; Florida; Louisiana; Mississippi; Texas). USA East Coast. Bahamas onshore plus offshore over internal continental shelf only.. North American Datum 1927 references the Clarke 1866 ellipsoid and the Greenwich prime meridian. North American Datum 1927 origin is Fundamental point: Meade's Ranch. Latitude: 39°13'26.686"N, longitude: 98°32'30.506"W (of Greenwich). North American Datum 1927 is a geodetic datum for Topographic mapping. In United States (USA) and Canada, replaced by North American Datum 1983 (NAD83) (code 6269) ; in Mexico, replaced by Mexican Datum of 1993 (code 1042).

Datum Details
Datum Name:	North American Datum 1927
Code:	6267
Area Of Use:	North America - NAD27 Area Details Area Name: North America - NAD27 Area Code: 1349 Description: North and central America: Antigua and Barbuda. Bahamas. Belize. British Virgin Islands. Canada - Alberta; British Columbia; Manitoba; New Brunswick; Newfoundland and Labrador; Northwest Territories; Nova Scotia; Nunavut; Ontario; Prince Edward Island; Quebec; Saskatchewan; Yukon. Cuba. El Salvador. Guatemala. Honduras. Puerto Rico. Mexico. Nicaragua. United States (USA) - Alabama; Alaska; 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. US Virgin Islands. Usage shall be onshore only except that onshore and offshore shall apply to Canada east coast (New Brunswick; Newfoundland and Labrador; Prince Edward Island; Quebec). Cuba. Mexico (Gulf of Mexico and Caribbean coasts only). USA Alaska. USA Gulf of Mexico (Alabama; Florida; Louisiana; Mississippi; Texas). USA East Coast. Bahamas onshore plus offshore over internal continental shelf only. Extents: 83.16 ° 167.65 ° -47.74 ° 7.98 ° Meta Data Remarks: Area crosses 180-degree meridian. Information Source: OGP Data Source: OGP Revision Date: 06/20/2011 Change Id: [2006.463] [2007.028] [2009.063] [2010.088] [2011.043]
Scope:	Topographic mapping.
Type:	geodetic
Realization Epoch:	1927
Origin:	Fundamental point: Meade's Ranch. Latitude: 39°13'26.686"N, longitude: 98°32'30.506"W (of Greenwich).
Ellipsoid:	Clarke 1866 Ellipsoid Details Name: Clarke 1866 Code: 7008 Shape: Ellipsoid Semi-Major Axis: 6378206.4 metre Unit Details Unit Name: metre Unit Code: 9001 Type: length Target Unit: metre Meta Data Remarks: Also known as International metre. SI standard unit. Information Source: ISO 1000. Data Source: OGP Revision Date: 06/02/1995 Semi Minor Axis: 6356583.8 metre Unit Details Unit Name: metre Unit Code: 9001 Type: length Target Unit: metre Meta Data Remarks: Also known as International metre. SI standard unit. Information Source: ISO 1000. Data Source: OGP Revision Date: 06/02/1995 Meta Data Remarks: Original definition a=20926062 and b=20855121 (British) feet. Uses Clarke's 1865 inch-metre ratio of 39.370432 to obtain metres. (Metric value then converted to US survey feet for use in the United States using 39.37 exactly giving a=20925832.16 ft US). Information Source: US Army Map Service Technical Manual No. 7; 1943. Data Source: OGP Revision Date: 06/02/1995 Change Id: [1998.340]
Prime Meridian:	Greenwich Prime Meridian Details Name: Greenwich Code: 8901 Greenwich Longitude: 0 degree Unit Details Unit Name: degree Unit Code: 9102 Type: angle Target Unit: radian Unit Details Unit Name: radian Unit Code: 9101 Type: angle Target Unit: radian Meta Data Remarks: SI standard unit. Information Source: ISO 1000:1992 Data Source: OGP Revision Date: 06/02/1995 Meta Data Remarks: = pi/180 radians Information Source: Data Source: OGP Revision Date: 11/18/2002 Change Id: [1996.220] [2002.860] Meta Data Information Source: Data Source: OGP Revision Date: 06/02/1995 Change Id: [1996.290]
Applicable CRS-s:	The following CRS are based on this datum: [NAD27]
Meta Data
Remarks:	In United States (USA) and Canada, replaced by North American Datum 1983 (NAD83) (code 6269) ; in Mexico, replaced by Mexican Datum of 1993 (code 1042).
Information Source:
Data Source:	OGP
Revision Date:	11/24/2009
Change Id:	[2008.024] [2008.045] [2009.087]
Alias:	Alias Naming System Remarks NAD27 EPSG abbreviation