EPSG systems

EPSG:26985 NAD83 / Maryland

Projected system (Lambert Conic Conformal (2SP)) in use: USA - Maryland. The full definition below, and conversion in one click.

System record
CodeEPSG:26985
NameNAD83 / Maryland
TypeProjected system — Lambert Conic Conformal (2SP)
Area of use USA - Maryland
United States (USA) - Maryland - counties of Allegany; Anne Arundel; Baltimore; Calvert; Caroline; Carroll; Cecil; Charles; Dorchester; Frederick; Garrett; Harford; Howard; Kent; Montgomery; Prince Georges; Queen Annes; Somerset; St Marys; Talbot; Washington; Wicomico; Worcester.
Bounds W -79,49° · S 37,97° · E -74,97° · N 39,73°
Countries United States
DatumNorth American Datum 1983
Ellipsoid GRS 1980 a = 6378137 m · 1/f = 298.257222101
Base geographic system EPSG:4269 — NAD83
Unit metre (X east, Y north)
Transformation to WGS 84 NAD83 to WGS 84 (1) (EPSG:1188) — accuracy 4 m
ScopeEngineering survey, topographic mapping.

Projection parameters

ParameterValueUnit
Latitude of false origin37.666666666666664degree
Longitude of false origin-77degree
Latitude of 1st standard parallel39.45degree
Latitude of 2nd standard parallel38.3degree
Easting at false origin400000metre
Northing at false origin0metre

proj4 definition

+proj=lcc +lat_0=37.6666666666667 +lon_0=-77 +lat_1=39.45 +lat_2=38.3 +x_0=400000 +y_0=0 +a=6378137 +rf=298.257222101 +units=m +towgs84=0,0,0 +no_defs

Paste it into QGIS, proj4js, PostGIS (spatial_ref_sys) or GDAL. +towgs84 carries the EPSG transformation to WGS 84; the official code stays EPSG:26985.

WKT (ESRI format, the .prj content)

PROJCS["NAD_1983_StatePlane_Maryland_FIPS_1900",GEOGCS["GCS_North_American_1983",DATUM["D_North_American_1983",SPHEROID["GRS_1980",6378137.0,298.257222101]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Lambert_Conformal_Conic"],PARAMETER["False_Easting",400000.0],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",-77.0],PARAMETER["Standard_Parallel_1",39.45],PARAMETER["Standard_Parallel_2",38.3],PARAMETER["Latitude_Of_Origin",37.6666666666667],UNIT["Meter",1.0]]

All systems — United States

Source: EPSG registry v11.022 (IOGP), through the PROJ database. Always check a code on epsg.org before contractual work.