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National Public and Aboriginal Lands (NPAL) Pre-1998

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: ANZCW0703005501

Title: National Public and Aboriginal Lands (NPAL) Pre-1998


Custodian: Geoscience Australia

Jurisdiction: Australia



Contains boundary and attribute information for parcels of public, Aboriginal and Torres Strait Islander land in Australia which are greater than 40 hectares. Selected smaller areas are shown by point locations (includes nature reserves, forests and Aboriginal land). The public lands and Aboriginal lands fall within six broad reserve classes:

- Forestry;

- Environmental protection;

- Institutional;

- Mining;

- Other reserved and unreserved Crown land; and

- Freehold or Crown leasehold land.

Attribute information includes (as applicable to the type of reserve):

- State and reserve name;

- Reserve type;

- Administering authority;

- Size (in hectares);

- Identification number; and

- Dates of original proclamation and latest update.

Note: Data have not been verified by State authorities.

ANZLIC search words:

  • BOUNDARIES Administrative Mapping
  • FORESTS Mapping
  • LAND Cadastre Mapping
  • LAND Use Reserve

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: 1985-06-01

Ending date: 1997-01-01

Dataset status

Progress: Complete

Maintenance and update frequency: Not Known


Stored data format:
DIGITAL - e00 ArcInfo export (e00) ArcInfo Workstation Geographic AGD66
Available format type:
DIGITAL - mif MapInfo Interchange Format (MIF) MapInfo Geographic AGD66
DIGITAL - shp ArcView shape file ArcView Geographic AGD66
DIGITAL - e00 ArcInfo export (e00) ArcInfo Workstation Geographic AGD66

Access constraints:

The data are subject to Copyright. Data files may be downloaded from Geoscience Australia's website at A licence agreement is required.

Free Data Download

Data quality


Data were collected primarily for national 1:250 000 scale mapping purposes. Source information for key land tenure classes (including forestry, nature conservation and Aboriginal lands) have been extracted from State and Commonwealth Government gazettes. Declared areas and boundary changes are recorded from gazettals and data holdings are periodically verified by comparison with information obtained from relevant State authorities. The Commonwealth Aboriginal and Torres Strait Islander Commission and State government departments have provided information on Aboriginal-held lands which are not gazetted. Information relating to institutional, mining and other classes was obtained from published maps but has not been systematically collected and contains little attribute information. Public roads and smaller reserves in urban areas are specifically excluded. The remaining areas are largely freehold land or leasehold Crown lands and are not distinguished. Other information was obtained from published maps and Geoscience Australia's National Topographic Mapping Series (NTMS).

Positional accuracy:

State borders were derived from survey details and coordinates were directly digitised. State borders following stream lines were digitised from 1:25 000, 1:50 000 and 1:100 000 scale topographic maps. The coastline for the database was redrawn from the 1:250 000 scale NTMS and digitised along with parcel boundaries for each sheet. First cover data was acquired primarily from a previous database maintained in Geoscience Australia through gazettal information. Boundary information was stored on cadastral map sets and individual reserve plans.

The source material used to derive the NPAL data complies with the following statement of positional accuracy: 'No more than 10% of well-defined points shall be in error by more than 1.5mm measured on the source material'.

Attribute accuracy:

An exhaustive check of each State database has been completed to ensure that only valid features and attributes are supplied. Oracle query tests carried out include:

- Check of valid feature codes;

- Removal of invalid and system feature codes;

- Check for all polygon and point features attached to attribute tables;

- Tally of all polygons, points and attribute table records;

- Check of layer/network assignment of all features; and

- Cross-check for invalid feature code/type combinations.

Logical Consistency:

The logical consistency of the database is defined by validating attributes, topological structure and graphical inconsistency clauses. All mandatory attributes for all features contain an entry. The topological structure is fully complete. There are no duplicate lines, no overshoots or undershoots in the database.


Completeness is checked through periodic comparison against State authority estate listings for nature conservation reserves, forestry reserves and Aboriginal reserves. Information on other Aboriginal lands is obtained through liaison with ATSIC offices and State Land Departments. Data is collected on a state basis and the completeness and currency of data is summarised below.


NSW - JUN 1997; NT - SEP 1991; QLD - SEP 1990; SA - DEC 1990; TAS - APR 1991; VIC - APR 1991; WA - JUN 1990.

- Forest

NSW - JUN 1997; NT - N/A; QLD - MAR 1991; SA - DEC 1990; TAS - APR 1991; VIC - APR 1991; WA - JUN 1990.

- Aboriginal

NSW - JUN 1997; NT - SEP 1991; QLD - SEP 1990; SA - DEC 1990; TAS - APR 1991; VIC - APR 1991; WA - JUN 1990.

- Water

NSW - JUN 1997; NT - MAR 1991; QLD - SEP 1987; SA - JUN 1986; TAS - APR 1991; VIC - APR 1991; WA - JUN 1988.

- Defence

NSW - JUN 1997; NT - MAR 1991; QLD - SEP 1987; SA - JUN 1986; TAS - APR 1991; VIC - APR 1991; WA - JUN 1988.

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: 45.8 - 60.3 depending on the format.

Scale/resolution: 1:250 000