geographic 2D 2004-01-06 true false https://www.opengis.net/def/crs/OGC/1.3/CRS27 https://www.opengis.net/def/crs/OGC/1.3/CRS27 NAD27 Longitude Latitude Note: this coordinate system includes longitudes which are POSITIVE EAST. Canada - Ontario. -95.16 -74.35 41.67 56.9 OGP 2014-05-01 false false https://www.opengis.net/def/area/EPSG/9.8.15/1367 Canada - Ontario Geodetic survey. ellipsoidal OGP 2015-05-22 true false https://www.opengis.net/def/cs/EPSG/9.8.15/6424 Ellipsoidal 2D CS. Axes: longitude, latitude. Orientations: east, north. UoM: degree Used in geog2D CRSs for some web mapping: CS code 6422 recommended. Coordinates referenced to this CS are in degrees. Any degree representation (e.g. DMSH, decimal, etc.) may be used but that used must be declared for the user by the supplier of data. https://www.opengis.net/def/axis/EPSG/9.8.15/220 Lon east https://www.opengis.net/def/axis/EPSG/9.8.15/221 Lat north geodetic Geodetic Survey of Canada. 2008-06-24 false https://www.opengis.net/def/datum/EPSG/9.8.15/6608 North American Datum 1927 (1976) NAD27(76) used in Ontario for all maps at scale 1/20 000 and larger; elsewhere in Canada for selected purposes. Canada - Ontario. -95.16 -74.35 41.67 56.9 OGP 2014-05-01 false false https://www.opengis.net/def/area/EPSG/9.8.15/1367 Canada - Ontario Geodetic survey, cadastre, topographic mapping, engineering survey. Fundamental point: Meade's Ranch. Latitude: 39°13'26.686"N, longitude: 98°32'30.506"W (of Greenwich). 1976-01-01 OGP 2016-12-15 true false https://www.opengis.net/def/meridian/EPSG/9.8.15/8901 Greenwich The international reference meridian as defined first by the 1884 International Meridian Conference and later by the Bureau International de l'Heure (BIH) and then the International Earth Rotation Service (IERS). 0 US Army Map Service Technical Manual No. 7; 1943. 2013-01-17 true false https://www.opengis.net/def/ellipsoid/EPSG/9.8.15/7008 Clarke 1866 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 US and international feet for use in Cayman Islands). 6378206.4 6356583.8