• MML07 Intermediate Reference Frame

  EPSG:1271
  Area of use: United Kingdom (UK) - on or related to the Midland Mainline rail route from Sheffield to London.
  

• FNL22 Intermediate Reference Frame

  EPSG:1321
  Area of use: United Kingdom (UK) - on or related to the rail route from Inverness to Thurso and Wick.
  

• CNH22 Intermediate Reference Frame

  EPSG:1336
  Area of use: United Kingdom (UK) - on or related to the rail route from Crewe via Chester to Holyhead.
  

• MALS09 Intermediate Reference Frame

  EPSG:1343
  Area of use: United Kingdom (UK) - on or related to the rail route from London (Marylebone) to Leamington Spa.
  

• RBEPP12 Intermediate Reference Frame

  EPSG:1352
  Area of use: United Kingdom (UK) - on or related to the rail route from Reading via Newbury to Penzance.
  

• HS2 Intermediate Reference Frame

  EPSG:1264
  Area of use: United Kingdom (UK)
  

• HS2 Vertical Reference Frame

  EPSG:1265
  Area of use: United Kingdom (UK)
  

• EBBWV14 Intermediate Reference Frame

  EPSG:1319
  Area of use: United Kingdom (UK) - on or related to the rail route from Newport (Park Junction) to Ebbw Vale.
  

• CWS13 Intermediate Reference Frame

  EPSG:1338
  Area of use: United Kingdom (UK) - on or related to the rail route from from Chester via Wrexham to Shrewsbury.
  

• HULLEE13 Intermediate Reference Frame

  EPSG:1317
  Area of use: United Kingdom (UK) - on or related to the rail route from the Morley tunnel through Leeds to Hull.
  

• MWC18 Intermediate Reference Frame

  EPSG:1324
  Area of use: United Kingdom (UK)
  

• COV23 Intermediate Reference Frame

  EPSG:1366
  Area of use: United Kingdom (UK)
  

• GWWWA22 Intermediate Reference Frame

  EPSG:1342
  Area of use: United Kingdom (UK)
  

• TPEN11 Intermediate Reference Frame

  EPSG:1266
  Area of use: United Kingdom (UK)
  

• MRH21 Intermediate Reference Frame

  EPSG:1314
  Area of use: United Kingdom (UK)
  

• SCM22 Intermediate Reference Frame

  EPSG:1320
  Area of use: United Kingdom (UK)
  

• GBK19 Intermediate Reference Frame

  EPSG:1289
  Area of use: United Kingdom (UK)
  

• MOLDOR11 Intermediate Reference Frame

  EPSG:1315
  Area of use: United Kingdom (UK)
  

• Ordnance Datum Newlyn (Offshore)

  EPSG:1164
  Area of use: United Kingdom (UK)
  

• ECML14_NB Intermediate Reference Frame

  EPSG:1310
  Area of use: United Kingdom (UK)
  

• OSGB 1970 (SN)

  EPSG:6278
  Area of use: United Kingdom (UK)
  

• EWR2 Intermediate Reference Frame

  EPSG:1311
  Area of use: United Kingdom (UK)
  

• Ordnance Survey of Great Britain 1936

  EPSG:6277
  Area of use: United Kingdom (UK)
  

• British Isles height ensemble

  EPSG:1288
  Area of use: United Kingdom (UK)
  

• EOS21 Intermediate Reference Frame

  EPSG:1308
  Area of use: United Kingdom (UK)
  

• European Vertical Reference Frame 2000

  EPSG:5129
  Area of use: Europe
  

• European Vertical Reference Frame 2007

  EPSG:5215
  Area of use: Europe
  

• European Vertical Reference Frame 2019

  EPSG:1274
  Area of use: Europe
  

• European Vertical Reference Frame 2019 mean tide

  EPSG:1287
  Area of use: Europe
  

• European Terrestrial Reference System 1989 ensemble

  EPSG:6258
  Area of use: Europe
  

• European Terrestrial Reference Frame 1989

  EPSG:1178
  Area of use: Europe
  

• European Terrestrial Reference Frame 1990

  EPSG:1179
  Area of use: Europe
  

• European Terrestrial Reference Frame 1991

  EPSG:1180
  Area of use: Europe
  

• European Terrestrial Reference Frame 1992

  EPSG:1181
  Area of use: Europe
  

• European Terrestrial Reference Frame 1993

  EPSG:1182
  Area of use: Europe
  

• European Terrestrial Reference Frame 1994

  EPSG:1183
  Area of use: Europe
  

• European Terrestrial Reference Frame 1996

  EPSG:1184
  Area of use: Europe
  

• European Terrestrial Reference Frame 1997

  EPSG:1185
  Area of use: Europe
  

• European Terrestrial Reference Frame 2000

  EPSG:1186
  Area of use: Europe
  

• European Terrestrial Reference Frame 2005

  EPSG:1204
  Area of use: Europe
  

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Type of results

• Coordinate reference systems (553)

•    Projected (387)
•    Geodetic (58)
•    Geodetic 3D (19)
•    Geocentric (18)
•    Vertical (24)
•    Compound (47)

• Operation (217)

•    Transformation (173)
•    Compound (4)
•    Conversion (40)

• Datum (71)

•    Vertical (22)
•    Geodetic (47)
•    Ensemble (2)

• Area (70)