Geodetic On-Line Access (GOLA)

    Please provide marks status feedback via SLIP Geodetic portal button ...


      Mark Details (GOLA last updated on 08-Apr-2026)
      Download details of all points Frequently Asked Questions
      Download graphic summaries of all points

    View the graphic summary
    SSM     COOGEE 5
    Alternate names : Map ref.: COOGEE BG34 2.1
    APREF/NGCA codes: Database number : 104953
    Stamp name:      COO5 Date established :   01/09/1972
    Physical status : located (Land Surveys) Phys. status date :  25/07/2025
    Physical type :    brass plaqueHatch cover type : concrete
    Mark set in :        concreteAccess type : 2 wheel drive
    Geographical CoordinatesMGA2020 Coordinates
    Horizontal datum : GDA2020Zone :             50
    Latitude :     S 32 08 43.24583Easting (m) :   385924.995
    Longitude :  E 115 47 25.48897Northing (m) :  6442812.867
    Convergence :       -0 38 37.15
    Point scale factor : 0.99976048
    Coordinate date :       12/09/2024
    Horizontal method :   GNSS Survey NetworkCadastral connection : Exists
    Relative horiz. accuracy :       30ppm ** Estimated relative uncertainty to adjacent marks
    Positional uncertainty (m) : 0.015 (95% Confidence level)
    Error Ellipse
    Semi-major axis (m) : 0.015
    Semi-minor axis (m) : 0.015
    Azimuth of semi-major axis (deg) : 122 3 18
    ** Projection coordinates are calculated from the geographical coordinates detailed above
    Project Grid - PCG2020Perth Coastal Grid 2020
    Easting (m) :   47523.189
    Northing (m) :  342033.462
    Convergence :       -0 0 50.29
    Point scale factor : 0.99999914
    Height Information
    Vertical datum :   AHD71Height type :          Orthometric
    Height (m) :         16.533Height date :          04/05/2000
    Established by :  Dept of Land Admin.State :                    Final
    Vertical method : Spirit LevellingVertical accuracy : 12rootK
    Derived GDA2020 ellipsoidal height (m) : -16.158N-Value (m) :          -32.691
    Geoid model :         AusGeoid2020
    ** Derived GDA2020 ellipsoidal height: h = H + N Interpolation :         Bi-Cubic
    Vertical datum :   GDA2020Height type :          Ellipsoidal
    Height (m) :         -16.148Height date :          12/09/2024
    Established by :  LandgateState :                    Final
    Vertical method : GNSS Survey NetworkVertical accuracy : 0.029m
    Mark to hatch cover :  0.125
    Mark to ground level : 
    RM Info** Warning: RM azimuths and coordinates are unverified
    ** Azimuth, distance and height difference are relative to main mark
    RM1 Phys. status : located (Land Surveys) Date :   25/07/2025
    Phys. type :    spikeSet in : concrete
    Azimuth :           190 40 35Type :   True azimuth
    Distance (m) :    3.052Type :   Horizontal
    Height diff. (m) : -0.066Type :   Spirit Levelling
    RM to GL (m) :   0.200
    RM2 Phys. status : damaged (Thompson Surveying) Date :   05/06/2024
    Phys. type :    spikeSet in : concrete
    Azimuth :           295 59 35Type :   True azimuth
    Distance (m) :    3.106Type :   Horizontal
    Height diff. (m) : -0.157Type :   Spirit Levelling
    RM to GL (m) :   None
    RM3 Phys. status : located (Land Surveys) Date :   25/07/2025
    Phys. type :    spikeSet in : concrete
    Azimuth :           10 40 35Type :   True azimuth
    Distance (m) :    3.372Type :   Horizontal
    Height diff. (m) : -0.068Type :   Spirit Levelling
    RM to GL (m) :   0.200
    RM4 Phys. status : located (Land Surveys) Date :   25/07/2025
    Phys. type :    spikeSet in : concrete
    Azimuth :           116 4 35Type :   True azimuth
    Distance (m) :    2.956Type :   Horizontal
    Height diff. (m) : 0.005Type :   Spirit Levelling
    RM to GL (m) :   0.200
    RM5 Phys. status : disturbed (Thompson Surveying) Date :   05/06/2024
    Phys. type :    spikeSet in : concrete
    Azimuth :           184 4 12Type :   True azimuth
    Distance (m) :    12.171Type :   Horizontal
    Height diff. (m) : -0.464Type :   Spirit Levelling
    RM to GL (m) :   0.300
    RM6 Phys. status : not located (Thompson Surveying) Date :   05/06/2024
    Phys. type :    spikeSet in : concrete
    Azimuth :           257 27 29Type :   True azimuth
    Distance (m) :    10.259Type :   Horizontal
    Height diff. (m) : -0.425Type :   Spirit Levelling
    RM to GL (m) :   None
    RM Position Information** Warning: RM coordinates should be verified prior to use
    ** Coordinates are calculated from reference observations
    ** Coordinate accuracies commensurate with related observations
    RM1
    Geographical CoordinatesMGA2020 Coordinates
    Horizontal datum : GDA2020Zone :             50
    Latitude :     S 32 08 43.34320Easting (m) :   385924.464
    Longitude :  E 115 47 25.46739Northing (m) :  6442809.862
    Project Grid - PCG2020Perth Coastal Grid 2020
    Easting (m) :   47522.624
    Northing (m) :  342030.463
    Height Information
    Vertical datum :   AHD71
    Height (m) :         16.467
    RM2
    Geographical CoordinatesMGA2020 Coordinates
    Horizontal datum : GDA2020Zone :             50
    Latitude :     S 32 08 43.20164Easting (m) :   385922.189
    Longitude :  E 115 47 25.38244Northing (m) :  6442814.196
    Project Grid - PCG2020Perth Coastal Grid 2020
    Easting (m) :   47520.397
    Northing (m) :  342034.823
    Height Information
    Vertical datum :   AHD71
    Height (m) :         16.376
    RM3
    Geographical CoordinatesMGA2020 Coordinates
    Horizontal datum : GDA2020Zone :             50
    Latitude :     S 32 08 43.13825Easting (m) :   385925.583
    Longitude :  E 115 47 25.51281Northing (m) :  6442816.186
    Project Grid - PCG2020Perth Coastal Grid 2020
    Easting (m) :   47523.813
    Northing (m) :  342036.776
    Height Information
    Vertical datum :   AHD71
    Height (m) :         16.465
    RM4
    Geographical CoordinatesMGA2020 Coordinates
    Horizontal datum : GDA2020Zone :             50
    Latitude :     S 32 08 43.28801Easting (m) :   385927.664
    Longitude :  E 115 47 25.59028Northing (m) :  6442811.597
    Project Grid - PCG2020Perth Coastal Grid 2020
    Easting (m) :   47525.845
    Northing (m) :  342032.163
    Height Information
    Vertical datum :   AHD71
    Height (m) :         16.538
    RM5
    Geographical CoordinatesMGA2020 Coordinates
    Horizontal datum : GDA2020Zone :             50
    Latitude :     S 32 08 43.63996Easting (m) :   385924.268
    Longitude :  E 115 47 25.45601Northing (m) :  6442800.720
    Project Grid - PCG2020Perth Coastal Grid 2020
    Easting (m) :   47522.328
    Northing (m) :  342021.321
    Height Information
    Vertical datum :   AHD71
    Height (m) :         16.069
    RM6
    Geographical CoordinatesMGA2020 Coordinates
    Horizontal datum : GDA2020Zone :             50
    Latitude :     S 32 08 43.31815Easting (m) :   385915.009
    Longitude :  E 115 47 25.10685Northing (m) :  6442810.527
    Project Grid - PCG2020Perth Coastal Grid 2020
    Easting (m) :   47513.176
    Northing (m) :  342031.232
    Height Information
    Vertical datum :   AHD71
    Height (m) :         16.108
    Cadastral Connection Fieldbooks
    DOLA 81828
    LG 103523
    LG 107923
    LG 154611
    W.ROSE 110
    Special Notes
    Unknown DateGM situated on area of graded limestone. COO1,COO5 & COO5 RM5 are co-linear. COO5,RM6 & COO6 are co-linear.
    ATRF 2014
    GDA2020 coordinates are equivalent to ATRF2014@2020.0. ATRF2014 coordinates can be determined by application of the Australian Plate Motion Model. For general and technical information on GDA2020 see http://www.icsm.gov.au/gda2020 and ATRF2014 see http://www.icsm.gov.au/australian-terrestrial-reference-frame.
    View the graphic summary
    SSM     COOGEE 5
    Alternate names : Map ref.: COOGEE BG34 2.1
    APREF/NGCA codes: Database number : 104953
    Stamp name:      COO5 Date established :   01/09/1972
    Physical status : located (Land Surveys) Phys. status date :  25/07/2025
    Physical type :    brass plaqueHatch cover type : concrete
    Mark set in :        concreteAccess type : 2 wheel drive
    Geographical CoordinatesMGA94 Coordinates
    Horizontal datum : GDA94Zone :             50
    Latitude :     S 32 08 43.29470Easting (m) :   385923.987
    Longitude :  E 115 47 25.44982Northing (m) :  6442811.350
    Convergence :       -0 38 37.17
    Point scale factor : 0.99976048
    Coordinate date :       09/10/2000
    Horizontal method :   Geodetic-TerrestrialCadastral connection : Exists
    Relative horiz. accuracy :       20ppm ** Estimated relative uncertainty to adjacent marks
    Positional uncertainty (m) : 0.014 (95% Confidence level)
    Error Ellipse
    Semi-major axis (m) : 0.014
    Semi-minor axis (m) : 0.013
    Azimuth of semi-major axis (deg) : 6 0 0
    ** Projection coordinates are calculated from the geographical coordinates detailed above
    Project Grid - PCG94Perth Coastal Grid 1994
    Easting (m) :   47522.164
    Northing (m) :  242031.956
    Convergence :       -0 0 50.31
    Point scale factor : 0.99999914
    Height Information
    Vertical datum :   AHD71Height type :          Orthometric
    Height (m) :         16.533Height date :          04/05/2000
    Established by :  Dept of Land Admin.State :                    Final
    Vertical method : Spirit LevellingVertical accuracy : 12rootK
    Derived GDA94 ellipsoidal height (m) : -16.083N-Value (m) :          -32.616
    Geoid model :         AUSGeoid09 V1.01
    ** Derived GDA94 ellipsoidal height: h = H + N Interpolation :         Bi-Cubic
    Vertical datum :   GDA2020Height type :          Ellipsoidal
    Height (m) :         -16.148Height date :          12/09/2024
    Established by :  LandgateState :                    Final
    Vertical method : GNSS Survey NetworkVertical accuracy : 0.029m
    Mark to hatch cover :  0.125
    Mark to ground level : 
    RM Info** Warning: RM azimuths and coordinates are unverified
    ** Azimuth, distance and height difference are relative to main mark
    RM1 Phys. status : located (Land Surveys) Date :   25/07/2025
    Phys. type :    spikeSet in : concrete
    Azimuth :           190 40 35Type :   True azimuth
    Distance (m) :    3.052Type :   Horizontal
    Height diff. (m) : -0.066Type :   Spirit Levelling
    RM to GL (m) :   0.200
    RM2 Phys. status : damaged (Thompson Surveying) Date :   05/06/2024
    Phys. type :    spikeSet in : concrete
    Azimuth :           295 59 35Type :   True azimuth
    Distance (m) :    3.106Type :   Horizontal
    Height diff. (m) : -0.157Type :   Spirit Levelling
    RM to GL (m) :   None
    RM3 Phys. status : located (Land Surveys) Date :   25/07/2025
    Phys. type :    spikeSet in : concrete
    Azimuth :           10 40 35Type :   True azimuth
    Distance (m) :    3.372Type :   Horizontal
    Height diff. (m) : -0.068Type :   Spirit Levelling
    RM to GL (m) :   0.200
    RM4 Phys. status : located (Land Surveys) Date :   25/07/2025
    Phys. type :    spikeSet in : concrete
    Azimuth :           116 4 35Type :   True azimuth
    Distance (m) :    2.956Type :   Horizontal
    Height diff. (m) : 0.005Type :   Spirit Levelling
    RM to GL (m) :   0.200
    RM5 Phys. status : disturbed (Thompson Surveying) Date :   05/06/2024
    Phys. type :    spikeSet in : concrete
    Azimuth :           184 4 12Type :   True azimuth
    Distance (m) :    12.171Type :   Horizontal
    Height diff. (m) : -0.464Type :   Spirit Levelling
    RM to GL (m) :   0.300
    RM6 Phys. status : not located (Thompson Surveying) Date :   05/06/2024
    Phys. type :    spikeSet in : concrete
    Azimuth :           257 27 29Type :   True azimuth
    Distance (m) :    10.259Type :   Horizontal
    Height diff. (m) : -0.425Type :   Spirit Levelling
    RM to GL (m) :   None
    RM Position Information** Warning: RM coordinates should be verified prior to use
    ** Coordinates are calculated from reference observations
    ** Coordinate accuracies commensurate with related observations
    RM1
    Geographical CoordinatesMGA94 Coordinates
    Horizontal datum : GDA94Zone :             50
    Latitude :     S 32 08 43.39207Easting (m) :   385923.455
    Longitude :  E 115 47 25.42824Northing (m) :  6442808.346
    Project Grid - PCG94Perth Coastal Grid 1994
    Easting (m) :   47521.599
    Northing (m) :  242028.957
    Height Information
    Vertical datum :   AHD71
    Height (m) :         16.467
    RM2
    Geographical CoordinatesMGA94 Coordinates
    Horizontal datum : GDA94Zone :             50
    Latitude :     S 32 08 43.25051Easting (m) :   385921.180
    Longitude :  E 115 47 25.34329Northing (m) :  6442812.680
    Project Grid - PCG94Perth Coastal Grid 1994
    Easting (m) :   47519.371
    Northing (m) :  242033.317
    Height Information
    Vertical datum :   AHD71
    Height (m) :         16.376
    RM3
    Geographical CoordinatesMGA94 Coordinates
    Horizontal datum : GDA94Zone :             50
    Latitude :     S 32 08 43.18712Easting (m) :   385924.574
    Longitude :  E 115 47 25.47366Northing (m) :  6442814.670
    Project Grid - PCG94Perth Coastal Grid 1994
    Easting (m) :   47522.787
    Northing (m) :  242035.270
    Height Information
    Vertical datum :   AHD71
    Height (m) :         16.465
    RM4
    Geographical CoordinatesMGA94 Coordinates
    Horizontal datum : GDA94Zone :             50
    Latitude :     S 32 08 43.33688Easting (m) :   385926.656
    Longitude :  E 115 47 25.55113Northing (m) :  6442810.081
    Project Grid - PCG94Perth Coastal Grid 1994
    Easting (m) :   47524.819
    Northing (m) :  242030.658
    Height Information
    Vertical datum :   AHD71
    Height (m) :         16.538
    RM5
    Geographical CoordinatesMGA94 Coordinates
    Horizontal datum : GDA94Zone :             50
    Latitude :     S 32 08 43.68883Easting (m) :   385923.259
    Longitude :  E 115 47 25.41686Northing (m) :  6442799.204
    Project Grid - PCG94Perth Coastal Grid 1994
    Easting (m) :   47521.303
    Northing (m) :  242019.816
    Height Information
    Vertical datum :   AHD71
    Height (m) :         16.069
    RM6
    Geographical CoordinatesMGA94 Coordinates
    Horizontal datum : GDA94Zone :             50
    Latitude :     S 32 08 43.36703Easting (m) :   385914.001
    Longitude :  E 115 47 25.06769Northing (m) :  6442809.011
    Project Grid - PCG94Perth Coastal Grid 1994
    Easting (m) :   47512.150
    Northing (m) :  242029.726
    Height Information
    Vertical datum :   AHD71
    Height (m) :         16.108
    Cadastral Connection Fieldbooks
    DOLA 81828
    LG 103523
    LG 107923
    LG 154611
    W.ROSE 110
    Special Notes
    Unknown DateGM situated on area of graded limestone. COO1,COO5 & COO5 RM5 are co-linear. COO5,RM6 & COO6 are co-linear.