{"$schema":"https://proj.org/schemas/v0.7/projjson.schema.json","type":"ProjectedCRS","name":"NAD27 / BLM 17N (ftUS)","base_crs":{"type":"GeographicCRS","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},"remarks":"Note: this CRS includes longitudes which are POSITIVE EAST. Replaced by NAD27(76) (code 4608) in Ontario, CGQ77 (code 4609) in Quebec, Mexican Datum of 1993 (code 4483) in Mexico, NAD83 (code 4269) in Canada (excl. Ontario & Quebec) & USA."},"conversion":{"name":"BLM zone 17N (US survey foot)","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":-81,"unit":"degree","id":{"authority":"EPSG","code":8802}},{"name":"Scale factor at natural origin","value":0.9996,"unit":"unity","id":{"authority":"EPSG","code":8805}},{"name":"False easting","value":1640416.67,"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":"Minerals management (including oil and gas exploration and production).","area":"United States (USA) - between 84°W and 78°W onshore and offshore - Florida; Georgia; Maryland; Michigan; New York; North Carolina; Ohio; Pennsylvania; South Carolina; Tennessee; Virginia; West Virginia; Gulf of Mexico outer continental shelf (GoM OCS) east of approximately 84°W - protraction areas Gainesville; Tarpon Springs; St Petersburg; Charlotte Harbor; Pulley Ridge; Dry Tortugas; Tortugas Valley; Miami; Key West.","bbox":{"south_latitude":23.81,"west_longitude":-84.09,"north_latitude":46.13,"east_longitude":-77.99},"id":{"authority":"EPSG","code":32067}}