{"$schema":"https://proj.org/schemas/v0.7/projjson.schema.json","type":"ProjectedCRS","name":"NAD83(CSRS) / Alberta 3TM ref merid 111 W","base_crs":{"type":"GeographicCRS","name":"NAD83(CSRS)","datum":{"type":"GeodeticReferenceFrame","name":"NAD83 Canadian Spatial Reference System","ellipsoid":{"name":"GRS 1980","semi_major_axis":6378137,"inverse_flattening":298.257222101}},"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":4617},"remarks":"Includes all versions of NAD83(CSRS) from v2 [CSRS98] onwards without specific identification. As such it has an accuracy of approximately 1m. Note: this CRS includes longitudes which are POSITIVE EAST."},"conversion":{"name":"Alberta 3-degree TM reference meridian 111 W","method":{"name":"Transverse Mercator","id":{"authority":"EPSG","code":9807}},"parameters":[{"name":"Latitude of natural origin","value":0,"unit":"degree","id":{"authority":"EPSG","code":8801}},{"name":"Longitude of natural origin","value":-111,"unit":"degree","id":{"authority":"EPSG","code":8802}},{"name":"Scale factor at natural origin","value":0.9999,"unit":"unity","id":{"authority":"EPSG","code":8805}},{"name":"False easting","value":0,"unit":"metre","id":{"authority":"EPSG","code":8806}},{"name":"False northing","value":0,"unit":"metre","id":{"authority":"EPSG","code":8807}}]},"coordinate_system":{"subtype":"Cartesian","axis":[{"name":"Easting","abbreviation":"E","direction":"east","unit":"metre"},{"name":"Northing","abbreviation":"N","direction":"north","unit":"metre"}]},"scope":"Cadastre, survey control and engineering survey in urban areas, typically in all municipalities that previously comprised the 73 Municipal Integrated Surveying and Mapping (MISAM) areas, also known as urban cadastral map areas. For rural areas use UTM.","area":"Canada - Alberta - east of 112°30'W.","bbox":{"south_latitude":48.99,"west_longitude":-112.5,"north_latitude":60,"east_longitude":-109.98},"id":{"authority":"EPSG","code":3779}}