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Critical Aeronautical Heights 1997

Note: This metadata describes the dataset in accordance with the ANZLIC (Australia New Zealand Land Information Council) Core Metadata Guidelines Version 2.

Dataset citation

ANZLIC unique identifier: ANZCW0703005263

Title: Critical Aeronautical Heights 1997


Custodian: Geoscience Australia

Jurisdiction: Australia



Critical Aeronautical Heights 1997 contains a selection of the highest point(s) in each geographical area of 30 minutes of latitude by 30 minutes of longitude (1 x 1:100,000 mapsheet). Elevations are in metres and feet and are always rounded up. Note: This is not a regularly gridded set of data. The data was captured from 1:100 000 scale maps.

ANZLIC search words:

  • LAND Topography Mapping
  • LAND Topography Models

Spatial domain:

locality map

Geographic extent name: AUSTRALIA EXCLUDING EXTERNAL TERRITORIES - AUS - Australia - Australia

Geographic extent polygon: 112 -9, 154 -9, 154 -44, 112 -44, 112 -9,

Note: The format for each Geographic extent name is: Name - Identifier - Category - Jurisdiction (as appropriate) See GEN Register

Geographic bounding box:
North bounding latitude: -9 °
South bounding latitude: -44 °
East bounding longitude: 154 °
West bounding longitude: 112 °

Data currency

Beginning date: Not Known

Ending date: 1997-06-01

Dataset status

Progress: Complete

Maintenance and update frequency: Not Known


Stored data format:
DIGITAL - asc ASCII text Geographic AGD66
Available format type:
DIGITAL - asc ASCII text Geographic AGD66

Access constraints:

LIcence required. Data free download online.

Free Data Download

Data quality


The data were captured from 1:100 000 scale maps.

Positional accuracy:

Not Documented

Attribute accuracy:

Column heading Description

100K Indicates the 1:100 000 map number

Source indicator and includes the following values:

1-19 = 1:100 000 mapping compilations (AGD66)

20-39 = 1:100 000 National Topographic Map Series (AGD66)

40-49 = 1:100 000 Army map (AGD66)

50-69 = Australian Geodetic Datum (AGD84)

70-79 = State maps

80-89 = Other Sources

90-98 = Visual Terminal Charts

99 = Geoscience Australia field surveys

Od Latitude degrees

Om Latitude minutes

Os Latitude seconds

Ld Longitude degrees

Lm Longitude minutes

Ls Longitude seconds

Hght Height in metres

Feet Height in feet

P Elevation indicator and includes the following values:

E = Estimated height

"blank" = Surveyed height

NAME Feature map (if known)

WAC1 WAC map area number

WAC2 Overlapping WAC map area number (if applicable)

Logical Consistency:

Not Documented


Complete for Australia. It consists of approximately 13 000 records.

Contact information

Contact organisation: Commonwealth of Australia (Geoscience Australia) (GA)
Contact position: Manager Client Services
Mail address: Cnr Jerrabomberra Ave and Hindmarsh Dr
Mail address: GPO Box 378
Locality: Canberra
State: ACT
Country: Australia
Postcode: 2601
Telephone: 02 6249 9966
Facsimile: 02 6249 9960
Electronic mail address:

Metadata information

Metadata date: 2013-03-08

Additional metadata

Metadata reference XHTML:

Metadata reference XML:

Size of dataset: 2.2 MB

Scale/resolution: 1:1 million

Elevation Datum: Australian Height Datum (AHD).

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