BOUNDCRS[SOURCECRS[PROJCRS["NAD83 / Massachusetts Island (ftUS)",BASEGEOGCRS["NAD83",DATUM["North American Datum 1983",ELLIPSOID["GRS 1980",6378137,298.257222101,LENGTHUNIT["metre",1]]],PRIMEM["Greenwich",0,ANGLEUNIT["degree",0.0174532925199433]],ID["EPSG",4269]],CONVERSION["SPCS83 Massachusetts Island zone (US survey foot)",METHOD["Lambert Conic Conformal (2SP)",ID["EPSG",9802]],PARAMETER["Latitude of false origin",41,ANGLEUNIT["degree",0.0174532925199433],ID["EPSG",8821]],PARAMETER["Longitude of false origin",-70.5,ANGLEUNIT["degree",0.0174532925199433],ID["EPSG",8822]],PARAMETER["Latitude of 1st standard parallel",41.4833333333333,ANGLEUNIT["degree",0.0174532925199433],ID["EPSG",8823]],PARAMETER["Latitude of 2nd standard parallel",41.2833333333333,ANGLEUNIT["degree",0.0174532925199433],ID["EPSG",8824]],PARAMETER["Easting at false origin",1640416.667,LENGTHUNIT["US survey foot",0.304800609601219],ID["EPSG",8826]],PARAMETER["Northing at false origin",0,LENGTHUNIT["US survey foot",0.304800609601219],ID["EPSG",8827]]],CS[Cartesian,2],AXIS["easting (X)",east,ORDER[1],LENGTHUNIT["US survey foot",0.304800609601219]],AXIS["northing (Y)",north,ORDER[2],LENGTHUNIT["US survey foot",0.304800609601219]],USAGE[SCOPE["Engineering survey, topographic mapping."],AREA["United States (USA) - Massachusetts offshore - counties of Dukes; Nantucket."],BBOX[41.19,-70.91,41.51,-69.89]],ID["EPSG",2250]]],TARGETCRS[VERTCRS["NAVD88 height",VDATUM["North American Vertical Datum 1988"],CS[vertical,1],AXIS["gravity-related height (H)",up,LENGTHUNIT["metre",1]],USAGE[SCOPE["Geodesy, engineering survey, topographic mapping."],AREA["Mexico - onshore. United States (USA) - CONUS and Alaska - onshore - 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."],BBOX[14.51,172.42,71.4,-66.91]],ID["EPSG",5703]]],ABRIDGEDTRANSFORMATION["NAD83 to NAVD88 height (8)",METHOD["Geographic3D to GravityRelatedHeight (gtx)",ID["EPSG",9665]],PARAMETERFILE["Geoid (height correction) model file","g2003u08.bin"],USAGE[SCOPE["Derivation of approximate gravity-related heights from GNSS observations."],AREA["United States (USA) - CONUS onshore - south of 41°N and east of 78°W - Delaware; Maryland, North Carolina, Virginia and West Virginia east of 78°W; Pennsylvania south of 41°N and east of 78°W; New Jersey and New York south of 41°N."],BBOX[33.84,-78,41.01,-71.9]],ID["EPSG",10020],REMARK["Uses Geoid03 hybrid model. See information source for further information. Note: Source CRS is 2D, used in this application of the method as a pseudo-3D CRS."]]]