{"$schema":"https://proj.org/schemas/v0.7/projjson.schema.json","type":"CompoundCRS","name":"NAD83(NSRS2007) + NAVD88 height","components":[{"type":"GeographicCRS","name":"NAD83(NSRS2007)","datum":{"type":"GeodeticReferenceFrame","name":"NAD83 (National Spatial Reference System 2007)","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"}]},"remarks":"Note: this CRS includes POSITIVE EAST longitudes. Replaces NAD83(HARN) and NAD83(FBN). Replaced by NAD83(2011)."},{"type":"VerticalCRS","name":"NAVD88 height","datum":{"type":"VerticalReferenceFrame","name":"North American Vertical Datum 1988"},"coordinate_system":{"subtype":"vertical","axis":[{"name":"Gravity-related height","abbreviation":"H","direction":"up","unit":"metre"}]}}],"scope":"Engineering survey, topographic mapping.","area":"United States (USA) - CONUS onshore - Alabama; 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.","bbox":{"south_latitude":24.41,"west_longitude":-124.79,"north_latitude":49.38,"east_longitude":-66.91},"id":{"authority":"EPSG","code":5500}}