Geodetic On-Line Access (GOLA)

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


      Mark Details (GOLA last updated on 16-Jun-2025)
      Download details of all points Frequently Asked Questions
      Download graphic summaries of all points

    View the graphic summary
    SSM     R 218
    Alternate names : MOKE Map ref.: GARDEN ISLAND GIS
    APREF/NGCA codes: 98WJDatabase number : 100504
    Stamp name:      R218 Date established :   01/01/1941
    Physical status : located (Landgate) Phys. status date :  27/08/2012
    Physical type :    brass plaqueHatch cover type : concrete
    Mark set in :        concreteAccess type : 4 wheel drive
    Geographical CoordinatesMGA2020 Coordinates
    Horizontal datum : GDA2020Zone :             50
    Latitude :     S 32 11 31.96028Easting (m) :   375084.613
    Longitude :  E 115 40 29.27453Northing (m) :  6437489.116
    Convergence :       -0 42 21.99
    Point scale factor : 0.99979243
    Coordinate date :       13/08/2018
    Horizontal method :   GNSS Survey NetworkCadastral connection : No
    Relative horiz. accuracy :       15ppm ** 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 (m) : 140 31 59
    ** Projection coordinates are calculated from the geographical coordinates detailed above
    Project Grid - PCG2020Perth Coastal Grid 2020
    Easting (m) :   36622.477
    Northing (m) :  336828.082
    Convergence :       -0 4 32.10
    Point scale factor : 1.00000127
    Height Information
    Vertical datum :   AHD71Height type :          Orthometric
    Height (m) :         54.352Height date :          04/05/2000
    Established by :  Dept of Land Admin.State :                    Final
    Vertical method : Spirit LevellingVertical accuracy : 12rootK
    Derived GDA2020 ellipsoidal height (m) : 21.373N-Value (m) :          -32.979
    Geoid model :         AusGeoid2020
    ** Derived GDA2020 ellipsoidal height: h = H + N Interpolation :         Bi-Cubic
    Vertical datum :   GDA2020Height type :          Ellipsoidal
    Height (m) :         21.384Height date :          15/08/2018
    Established by :  Geoscience AustraliaState :                    Final
    Vertical method : GNSS Survey NetworkVertical accuracy : 0.024m
    Mark to hatch cover :  0.452
    Mark to ground level : 0.42
    RM Info** Warning: RM azimuths and coordinates are unverified
    ** Azimuth, distance and height difference are relative to main mark
    RM1 Phys. status : located (Landgate) Date :   30/03/2012
    Phys. type :    spikeSet in : concrete
    Azimuth :           316 54 1Type :   True azimuth
    Distance (m) :    3.394Type :   Horizontal
    Height diff. (m) : 0.035Type :   Spirit Levelling
    RM to GL (m) :   0.500
    RM2 Phys. status : located (Landgate) Date :   30/03/2012
    Phys. type :    spikeSet in : concrete
    Azimuth :           82 0 58Type :   True azimuth
    Distance (m) :    2.997Type :   Horizontal
    Height diff. (m) : -0.048Type :   Spirit Levelling
    RM to GL (m) :   0.450
    RM3 Phys. status : located (Landgate) Date :   30/03/2012
    Phys. type :    spikeSet in : concrete
    Azimuth :           219 0 22Type :   True azimuth
    Distance (m) :    3.178Type :   Horizontal
    Height diff. (m) : -0.223Type :   Spirit Levelling
    RM to GL (m) :   0.600
    RM4 Phys. status : established Date :   01/01/1970
    Phys. type :    spikeSet in : concrete
    Azimuth :           83 17 6Type :   True azimuth
    Distance (m) :    1.006Type :   Horizontal
    Height diff. (m) : NoneType :   
    RM to GL (m) :   None
    RM5 Phys. status : established Date :   01/01/1970
    Phys. type :    spikeSet in : concrete
    Azimuth :           172 59 15Type :   True azimuth
    Distance (m) :    1.006Type :   Horizontal
    Height diff. (m) : NoneType :   
    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 11 31.87983Easting (m) :   375082.265
    Longitude :  E 115 40 29.18599Northing (m) :  6437491.565
    Project Grid - PCG2020Perth Coastal Grid 2020
    Easting (m) :   36620.155
    Northing (m) :  336830.558
    Height Information
    Vertical datum :   AHD71
    Height (m) :         54.387
    RM2
    Geographical CoordinatesMGA2020 Coordinates
    Horizontal datum : GDA2020Zone :             50
    Latitude :     S 32 11 31.94677Easting (m) :   375087.575
    Longitude :  E 115 40 29.38784Northing (m) :  6437489.569
    Project Grid - PCG2020Perth Coastal Grid 2020
    Easting (m) :   36625.445
    Northing (m) :  336828.503
    Height Information
    Vertical datum :   AHD71
    Height (m) :         54.304
    RM3
    Geographical CoordinatesMGA2020 Coordinates
    Horizontal datum : GDA2020Zone :             50
    Latitude :     S 32 11 32.04045Easting (m) :   375082.644
    Longitude :  E 115 40 29.19816Northing (m) :  6437486.623
    Project Grid - PCG2020Perth Coastal Grid 2020
    Easting (m) :   36620.480
    Northing (m) :  336825.610
    Height Information
    Vertical datum :   AHD71
    Height (m) :         54.129
    RM4
    Geographical CoordinatesMGA2020 Coordinates
    Horizontal datum : GDA2020Zone :             50
    Latitude :     S 32 11 31.95646Easting (m) :   375085.611
    Longitude :  E 115 40 29.31267Northing (m) :  6437489.246
    Project Grid - PCG2020Perth Coastal Grid 2020
    Easting (m) :   36623.476
    Northing (m) :  336828.201
    Height Information
    Vertical datum :   
    Height (m) :         No height available
    RM5
    Geographical CoordinatesMGA2020 Coordinates
    Horizontal datum : GDA2020Zone :             50
    Latitude :     S 32 11 31.99270Easting (m) :   375084.749
    Longitude :  E 115 40 29.27922Northing (m) :  6437488.119
    Project Grid - PCG2020Perth Coastal Grid 2020
    Easting (m) :   36622.602
    Northing (m) :  336827.084
    Height Information
    Vertical datum :   
    Height (m) :         No height available
    Cadastral Connection Fieldbooks
    No Fieldbooks for this mark
    Special Notes
    Unknown DateContact the Visiting Liason Officer on 9550 2271 prior to visit. At Peron Road entrance tell the officer issuing pass that you need to to see the Visiting Liason Officer, a permit is required. Ask the VLO for the key for the chain across the track. On weekends a key is also required to gate at 7.41km.
    03/09/2002HMAS STIRLING & DEC to be notified for approval for visit to Island. Contact DEC Ranger Tel: 9553 2432 or Mob: 0410 694 070.
    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     R 218
    Alternate names : MOKE Map ref.: GARDEN ISLAND GIS
    APREF/NGCA codes: 98WJDatabase number : 100504
    Stamp name:      R218 Date established :   01/01/1941
    Physical status : located (Landgate) Phys. status date :  27/08/2012
    Physical type :    brass plaqueHatch cover type : concrete
    Mark set in :        concreteAccess type : 4 wheel drive
    Geographical CoordinatesMGA94 Coordinates
    Horizontal datum : GDA94Zone :             50
    Latitude :     S 32 11 32.00882Easting (m) :   375083.616
    Longitude :  E 115 40 29.23573Northing (m) :  6437487.609
    Convergence :       -0 42 22.01
    Point scale factor : 0.99979243
    Coordinate date :       05/05/2000
    Horizontal method :   Global Position SystemCadastral connection : No
    Relative horiz. accuracy :       1ppm ** Estimated relative uncertainty to adjacent marks
    Positional uncertainty (m) : 0.004 (95% Confidence level)
    Error Ellipse
    Semi-major axis (m) : 0.004
    Semi-minor axis (m) : 0.004
    Azimuth of semi-major axis (m) : 174 0 0
    ** Projection coordinates are calculated from the geographical coordinates detailed above
    Project Grid - PCG94Perth Coastal Grid 1994
    Easting (m) :   36621.463
    Northing (m) :  236826.586
    Convergence :       -0 4 32.12
    Point scale factor : 1.00000127
    Height Information
    Vertical datum :   AHD71Height type :          Orthometric
    Height (m) :         54.352Height date :          04/05/2000
    Established by :  Dept of Land Admin.State :                    Final
    Vertical method : Spirit LevellingVertical accuracy : 12rootK
    Derived GDA94 ellipsoidal height (m) : 21.363N-Value (m) :          -32.989
    Geoid model :         AUSGeoid09 V1.01
    ** Derived GDA94 ellipsoidal height: h = H + N Interpolation :         Bi-Cubic
    Vertical datum :   GDA2020Height type :          Ellipsoidal
    Height (m) :         21.384Height date :          15/08/2018
    Established by :  Geoscience AustraliaState :                    Final
    Vertical method : GNSS Survey NetworkVertical accuracy : 0.024m
    Mark to hatch cover :  0.452
    Mark to ground level : 0.42
    RM Info** Warning: RM azimuths and coordinates are unverified
    ** Azimuth, distance and height difference are relative to main mark
    RM1 Phys. status : located (Landgate) Date :   30/03/2012
    Phys. type :    spikeSet in : concrete
    Azimuth :           316 54 1Type :   True azimuth
    Distance (m) :    3.394Type :   Horizontal
    Height diff. (m) : 0.035Type :   Spirit Levelling
    RM to GL (m) :   0.500
    RM2 Phys. status : located (Landgate) Date :   30/03/2012
    Phys. type :    spikeSet in : concrete
    Azimuth :           82 0 58Type :   True azimuth
    Distance (m) :    2.997Type :   Horizontal
    Height diff. (m) : -0.048Type :   Spirit Levelling
    RM to GL (m) :   0.450
    RM3 Phys. status : located (Landgate) Date :   30/03/2012
    Phys. type :    spikeSet in : concrete
    Azimuth :           219 0 22Type :   True azimuth
    Distance (m) :    3.178Type :   Horizontal
    Height diff. (m) : -0.223Type :   Spirit Levelling
    RM to GL (m) :   0.600
    RM4 Phys. status : established Date :   01/01/1970
    Phys. type :    spikeSet in : concrete
    Azimuth :           83 17 6Type :   True azimuth
    Distance (m) :    1.006Type :   Horizontal
    Height diff. (m) : NoneType :   
    RM to GL (m) :   None
    RM5 Phys. status : established Date :   01/01/1970
    Phys. type :    spikeSet in : concrete
    Azimuth :           172 59 15Type :   True azimuth
    Distance (m) :    1.006Type :   Horizontal
    Height diff. (m) : NoneType :   
    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 11 31.92837Easting (m) :   375081.267
    Longitude :  E 115 40 29.14719Northing (m) :  6437490.058
    Project Grid - PCG94Perth Coastal Grid 1994
    Easting (m) :   36619.141
    Northing (m) :  236829.061
    Height Information
    Vertical datum :   AHD71
    Height (m) :         54.387
    RM2
    Geographical CoordinatesMGA94 Coordinates
    Horizontal datum : GDA94Zone :             50
    Latitude :     S 32 11 31.99531Easting (m) :   375086.578
    Longitude :  E 115 40 29.34904Northing (m) :  6437488.062
    Project Grid - PCG94Perth Coastal Grid 1994
    Easting (m) :   36624.431
    Northing (m) :  236827.006
    Height Information
    Vertical datum :   AHD71
    Height (m) :         54.304
    RM3
    Geographical CoordinatesMGA94 Coordinates
    Horizontal datum : GDA94Zone :             50
    Latitude :     S 32 11 32.08899Easting (m) :   375081.647
    Longitude :  E 115 40 29.15936Northing (m) :  6437485.115
    Project Grid - PCG94Perth Coastal Grid 1994
    Easting (m) :   36619.466
    Northing (m) :  236824.114
    Height Information
    Vertical datum :   AHD71
    Height (m) :         54.129
    RM4
    Geographical CoordinatesMGA94 Coordinates
    Horizontal datum : GDA94Zone :             50
    Latitude :     S 32 11 32.00500Easting (m) :   375084.613
    Longitude :  E 115 40 29.27387Northing (m) :  6437487.739
    Project Grid - PCG94Perth Coastal Grid 1994
    Easting (m) :   36622.462
    Northing (m) :  236826.705
    Height Information
    Vertical datum :   
    Height (m) :         No height available
    RM5
    Geographical CoordinatesMGA94 Coordinates
    Horizontal datum : GDA94Zone :             50
    Latitude :     S 32 11 32.04123Easting (m) :   375083.751
    Longitude :  E 115 40 29.24042Northing (m) :  6437486.612
    Project Grid - PCG94Perth Coastal Grid 1994
    Easting (m) :   36621.587
    Northing (m) :  236825.588
    Height Information
    Vertical datum :   
    Height (m) :         No height available
    Cadastral Connection Fieldbooks
    No Fieldbooks for this mark
    Special Notes
    Unknown DateContact the Visiting Liason Officer on 9550 2271 prior to visit. At Peron Road entrance tell the officer issuing pass that you need to to see the Visiting Liason Officer, a permit is required. Ask the VLO for the key for the chain across the track. On weekends a key is also required to gate at 7.41km.
    03/09/2002HMAS STIRLING & DEC to be notified for approval for visit to Island. Contact DEC Ranger Tel: 9553 2432 or Mob: 0410 694 070.