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      Mark Details (GOLA last updated on 19-May-2025)
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    SSM     R 230
    Alternate names : LATHAM Map ref.: DUMBLEYUNG SI50-7
    APREF/NGCA codes: 83WIDatabase number : 100537
    Stamp name:      Date established :   01/01/1941
    Physical status : located (Landgate) Phys. status date :  30/04/2014
    Physical type :    brass plaqueHatch cover type : none
    Mark set in :        pillarAccess type : 2 wheel drive
    Geographical CoordinatesMGA2020 Coordinates
    Horizontal datum : GDA2020Zone :             50
    Latitude :     S 33 18 51.92317Easting (m) :   525893.039
    Longitude :  E 117 16 41.41497Northing (m) :  6313820.678
    Convergence :       0 9 10.01
    Point scale factor : 0.99960827
    Coordinate date :       13/08/2018
    Horizontal method :   GNSS Survey NetworkCadastral connection : Exists
    Relative horiz. accuracy :       5ppm ** 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) : 171 2 3
    Height Information
    Vertical datum :   AHD71Height type :          Orthometric
    Height (m) :         388.393Height date :          05/11/2004
    Established by :  Dept of Land Admin.State :                    Final
    Vertical method : Spirit LevellingVertical accuracy : 12rootK
    Derived GDA2020 ellipsoidal height (m) : 361.526N-Value (m) :          -26.867
    Geoid model :         AusGeoid2020
    ** Derived GDA2020 ellipsoidal height: h = H + N Interpolation :         Bi-Cubic
    Vertical datum :   GDA2020Height type :          Ellipsoidal
    Height (m) :         361.536Height date :          15/08/2018
    Established by :  Geoscience AustraliaState :                    Final
    Vertical method : GNSS Survey NetworkVertical accuracy : 0.025m
    Mark to hatch cover :  
    Mark to ground level : -1.19
    RM Info** Warning: RM azimuths and coordinates are unverified
    ** Azimuth, distance and height difference are relative to main mark
    RM1 Phys. status : damaged Date :   20/02/1986
    Phys. type :    Set in :
    Azimuth :           30 15 0Type :   Magnetic bearing
    Distance (m) :    9.206Type :   Horizontal
    Height diff. (m) : 0.000Type :   
    RM to GL (m) :   0.000
    RM2 Phys. status : damaged Date :   20/02/1986
    Phys. type :    Set in :
    Azimuth :           137 0 0Type :   Magnetic bearing
    Distance (m) :    7.923Type :   Horizontal
    Height diff. (m) : 0.000Type :   
    RM to GL (m) :   0.000
    RM3 Phys. status : located Date :   01/02/1997
    Phys. type :    Set in :
    Azimuth :           61 0 0Type :   Magnetic bearing
    Distance (m) :    3.683Type :   Horizontal
    Height diff. (m) : -1.416Type :   Spirit Levelling
    RM to GL (m) :   0.000
    RM4 Phys. status : located (Landgate) Date :   30/04/2014
    Phys. type :    Set in :
    Azimuth :           152 0 0Type :   Magnetic bearing
    Distance (m) :    1.399Type :   Horizontal
    Height diff. (m) : -1.145Type :   Spirit Levelling
    RM to GL (m) :   0.000
    RM5 Phys. status : located (Landgate) Date :   25/01/2011
    Phys. type :    Set in :
    Azimuth :           243 0 0Type :   Magnetic bearing
    Distance (m) :    2.425Type :   Horizontal
    Height diff. (m) : -1.142Type :   Spirit Levelling
    RM to GL (m) :   0.000
    RM6 Phys. status : located (Landgate) Date :   30/04/2014
    Phys. type :    spring head nailSet in : rock
    Azimuth :           85 50 27Type :   True azimuth
    Distance (m) :    1.278Type :   Horizontal
    Height diff. (m) : -1.190Type :   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 Coordinates:No current GDA2020 coordinates exist
    Height Information
    Vertical datum :   
    Height (m) :         No height available
    RM2
    Geographical Coordinates:No current GDA2020 coordinates exist
    Height Information
    Vertical datum :   
    Height (m) :         No height available
    RM3
    Geographical Coordinates:No current GDA2020 coordinates exist
    Height Information
    Vertical datum :   
    Height (m) :         No height available
    RM4
    Geographical Coordinates:No current GDA2020 coordinates exist
    Height Information
    Vertical datum :   
    Height (m) :         No height available
    RM5
    Geographical Coordinates:No current GDA2020 coordinates exist
    Height Information
    Vertical datum :   
    Height (m) :         No height available
    RM6
    Geographical CoordinatesMGA2020 Coordinates
    Horizontal datum : GDA2020Zone :             50
    Latitude :     S 33 18 51.92016Easting (m) :   525894.314
    Longitude :  E 117 16 41.46425Northing (m) :  6313820.767
    Height Information
    Vertical datum :   AHD71
    Height (m) :         387.203
    Cadastral Connection Fieldbooks
    DOLA FB 83313
    DOLA FB 83314
    DOLA FB 83315
    Special Notes
    Unknown DateRare flora exists in the vicinity of this mark. Disturbance is an offence under Wildlife Conservation Act,1950. For further details contact Department of Conservation and Land Management.
    05/11/2010This mark requires a pillar plate
    29/05/2006Located within Trigonometrical Station Reserve 27578
    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 230
    Alternate names : LATHAM Map ref.: DUMBLEYUNG SI50-7
    APREF/NGCA codes: 83WIDatabase number : 100537
    Stamp name:      Date established :   01/01/1941
    Physical status : located (Landgate) Phys. status date :  30/04/2014
    Physical type :    brass plaqueHatch cover type : none
    Mark set in :        pillarAccess type : 2 wheel drive
    Geographical CoordinatesMGA94 Coordinates
    Horizontal datum : GDA94Zone :             50
    Latitude :     S 33 18 51.97168Easting (m) :   525892.040
    Longitude :  E 117 16 41.37646Northing (m) :  6313819.187
    Convergence :       0 9 9.99
    Point scale factor : 0.99960827
    Coordinate date :       17/06/2015
    Horizontal method :   Global Position SystemCadastral connection : Exists
    Relative horiz. accuracy :       10ppm ** Estimated relative uncertainty to adjacent marks
    Positional uncertainty (m) : 0.011 (95% Confidence level)
    Error Ellipse
    Semi-major axis (m) : 0.011
    Semi-minor axis (m) : 0.010
    Azimuth of semi-major axis (m) : 68 0 0
    Height Information
    Vertical datum :   AHD71Height type :          Orthometric
    Height (m) :         388.393Height date :          05/11/2004
    Established by :  Dept of Land Admin.State :                    Final
    Vertical method : Spirit LevellingVertical accuracy : 12rootK
    Derived GDA94 ellipsoidal height (m) : 361.556N-Value (m) :          -26.837
    Geoid model :         AUSGeoid09 V1.01
    ** Derived GDA94 ellipsoidal height: h = H + N Interpolation :         Bi-Cubic
    Vertical datum :   GDA2020Height type :          Ellipsoidal
    Height (m) :         361.536Height date :          15/08/2018
    Established by :  Geoscience AustraliaState :                    Final
    Vertical method : GNSS Survey NetworkVertical accuracy : 0.025m
    Mark to hatch cover :  
    Mark to ground level : -1.19
    RM Info** Warning: RM azimuths and coordinates are unverified
    ** Azimuth, distance and height difference are relative to main mark
    RM1 Phys. status : damaged Date :   20/02/1986
    Phys. type :    Set in :
    Azimuth :           30 15 0Type :   Magnetic bearing
    Distance (m) :    9.206Type :   Horizontal
    Height diff. (m) : 0.000Type :   
    RM to GL (m) :   0.000
    RM2 Phys. status : damaged Date :   20/02/1986
    Phys. type :    Set in :
    Azimuth :           137 0 0Type :   Magnetic bearing
    Distance (m) :    7.923Type :   Horizontal
    Height diff. (m) : 0.000Type :   
    RM to GL (m) :   0.000
    RM3 Phys. status : located Date :   01/02/1997
    Phys. type :    Set in :
    Azimuth :           61 0 0Type :   Magnetic bearing
    Distance (m) :    3.683Type :   Horizontal
    Height diff. (m) : -1.416Type :   Spirit Levelling
    RM to GL (m) :   0.000
    RM4 Phys. status : located (Landgate) Date :   30/04/2014
    Phys. type :    Set in :
    Azimuth :           152 0 0Type :   Magnetic bearing
    Distance (m) :    1.399Type :   Horizontal
    Height diff. (m) : -1.145Type :   Spirit Levelling
    RM to GL (m) :   0.000
    RM5 Phys. status : located (Landgate) Date :   25/01/2011
    Phys. type :    Set in :
    Azimuth :           243 0 0Type :   Magnetic bearing
    Distance (m) :    2.425Type :   Horizontal
    Height diff. (m) : -1.142Type :   Spirit Levelling
    RM to GL (m) :   0.000
    RM6 Phys. status : located (Landgate) Date :   30/04/2014
    Phys. type :    spring head nailSet in : rock
    Azimuth :           85 50 27Type :   True azimuth
    Distance (m) :    1.278Type :   Horizontal
    Height diff. (m) : -1.190Type :   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 Coordinates:No current GDA94 coordinates exist
    Height Information
    Vertical datum :   
    Height (m) :         No height available
    RM2
    Geographical Coordinates:No current GDA94 coordinates exist
    Height Information
    Vertical datum :   
    Height (m) :         No height available
    RM3
    Geographical Coordinates:No current GDA94 coordinates exist
    Height Information
    Vertical datum :   
    Height (m) :         No height available
    RM4
    Geographical Coordinates:No current GDA94 coordinates exist
    Height Information
    Vertical datum :   
    Height (m) :         No height available
    RM5
    Geographical Coordinates:No current GDA94 coordinates exist
    Height Information
    Vertical datum :   
    Height (m) :         No height available
    RM6
    Geographical CoordinatesMGA94 Coordinates
    Horizontal datum : GDA94Zone :             50
    Latitude :     S 33 18 51.96867Easting (m) :   525893.314
    Longitude :  E 117 16 41.42574Northing (m) :  6313819.276
    Height Information
    Vertical datum :   AHD71
    Height (m) :         387.203
    Cadastral Connection Fieldbooks
    DOLA FB 83313
    DOLA FB 83314
    DOLA FB 83315
    Special Notes
    Unknown DateRare flora exists in the vicinity of this mark. Disturbance is an offence under Wildlife Conservation Act,1950. For further details contact Department of Conservation and Land Management.
    05/11/2010This mark requires a pillar plate
    29/05/2006Located within Trigonometrical Station Reserve 27578