Topographic maps on a scale of 1/20,000

**Note that topographic maps at a scale of 1/20,000 are no longer updated. For the latest update date, see the [metadata] (ftp://transfert.mern.gouv.qc.ca/public/diffusion/RGQ/Documentation/BDTQ/Metadonnees_Topo-20K.xls). The reference cartographic data is now constituted according to a continuous information layer approach: **

* [AQNetwork+] (https://www.donneesquebec.ca/recherche/fr/dataset/adresses-quebec)

* [Quebec Hydrographic Network Geobase (GRHQ)] (https://www.donneesquebec.ca/recherche/dataset/grhq)

* [Administrative divisions on a scale of 1/20,000 (SDA)] (https://www.donneesquebec.ca/recherche/fr/dataset/decoupages-administratifs)

* [Regional Coherent Hydro Digital Terrain Models (RTM)] (https://www.donneesquebec.ca/recherche/fr/dataset/modeles-numerique-de-terrain-hydro-coherents-a-l-echelle-regionale)

***

Topographic maps at a scale of 1/20,000 are the official cartographic base of the Government of Quebec.

They cover almost all of the territory south of the 52nd parallel.

The data is extracted from aerial photographs at a scale of 1:40,000 taken at an altitude of 6,300 meters.

They offer an accuracy of approximately four meters in planimetry. In hypsometry, it is about two meters for dimensional points and about five meters for level curves.

Each file covers an area of approximately 250 km2.

The main components are:

* Hydrography (lakes, rivers, streams, swamps, etc.).

* Vegetation (forests, peatlands, nurseries, orchards, etc.).

* The constructions of man:

* transport infrastructure (roads, bridges, airports, etc.);

* buildings (mobile homes, silos, greenhouses, etc.);

* equipment (docks, electrical power transmission lines, surface tanks, etc.);

* designated areas (golf courses, loan benches, etc.).

* The relief (the level curves are generally at an equidistance of ten meters and, in some cases, they can vary between eight and twenty meters).**This third party metadata element was translated using an automated translation tool (Amazon Translate).**

Simple

Date ( RI_367 )
2018-07-09
Date ( RI_366 )
2018-07-09
RI_418
  Government and Municipalities of Québec; Government and Municipalities of Québec; Ministère des Ressources naturelles et des Forêts - Direction générale de l'information géospatiale ( )
https://www.donneesquebec.ca
Status
historicalArchive; archiveHistorique RI_594
Maintenance and update frequency
notPlanned; nonPlanifié RI_542
Keywords ( RI_528 )
  • BDTQ
  • buildings
  • Hydrography
  • Relief
  • Transport
  • Vegetation
Government of Canada Core Subject Thesaurus Thésaurus des sujets de base du gouvernement du Canada ( RI_528 )
  • Government information
Use limitation
Creative Commons 4.0 Attribution (CC-BY) licence – Quebec (https://www.donneesquebec.ca/fr/licence/)
Access constraints
license; licence RI_606
Use constraints
license; licence RI_606
Spatial representation type
grid; grille RI_636
Metadata language
eng; CAN
Metadata language
fra; CAN
Topic category
  • Geoscientific information
Begin date
1950-01-01
End date
2006-01-01
N
S
E
W
thumbnail


Reference system identifier
unknown / unknown / unknown
Distribution format
  • CSV ( unknown )

  • E00 ( unknown )

  • GeoTIF ( unknown )

  • HTML ( unknown )

  • PDF ( unknown )

  • SHP ( unknown )

  • WMS ( unknown )

  • WMTS ( unknown )

  • XLS ( unknown )

  • other ( unknown )

RI_418
  Government and Municipalities of Québec; Government and Municipalities of Québec; Ministère des Ressources naturelles et des Forêts - Direction générale de l'information géospatiale ( )
https://www.donneesquebec.ca
OnLine resource
Download index (csv format) ( HTTPS )

Dataset;CSV;fra

OnLine resource
Full directory (Cover format (ArcInfo)) ( HTTPS )

Dataset;E00;fra

OnLine resource
Full directory (GeoTIFF format, MTM projection) ( HTTPS )

Dataset;GeoTIF;fra

OnLine resource
Full directory (GeoTIFF format, CCL projection) ( HTTPS )

Dataset;GeoTIF;fra

OnLine resource
Interactive map ( HTTPS )

Dataset;HTML;fra

OnLine resource
Download card per sheet ( HTTPS )

Dataset;HTML;fra

OnLine resource
Original metadata (https://www.donneesquebec.ca) ( HTTPS )

Dataset;HTML;fra

OnLine resource
Index of map sheets (PDF format) ( HTTPS )

Supporting Document;PDF;fra

OnLine resource
Full directory (PDF format) ( HTTPS )

Supporting Document;PDF;fra

OnLine resource
Physical structure of the data ( HTTPS )

Supporting Document;PDF;fra

OnLine resource
Production standards ( HTTPS )

Supporting Document;PDF;fra

OnLine resource
DGN file on a scale of 1/20,000 ( HTTPS )

Supporting Document;PDF;fra

OnLine resource
Legend of the topographic map on a scale of 1/20,000 ( HTTPS )

Supporting Document;PDF;fra

OnLine resource
Additional coordinates for using raster images ( HTTPS )

Supporting Document;PDF;fra

OnLine resource
Download index (shp format) ( HTTPS )

Dataset;SHP;fra

OnLine resource
WMS service ( HTTPS )

Web Service;WMS;fra

OnLine resource
WMS service ( HTTPS )

Web Service;WMS;fra

OnLine resource
WMTS service ( HTTPS )

Web Service;WMTS;fra

OnLine resource
Metadata ( HTTPS )

Dataset;XLS;fra

OnLine resource
Full directory (DGN format) ( HTTPS )

Dataset;other;fra

File identifier
8dc04c10-708e-4afa-813e-acb96c3101a1 XML
Metadata language
eng; CAN
Character set
utf8; utf8 RI_458
Hierarchy level
dataset; jeuDonnées RI_622
Date stamp
2025-12-02
Metadata standard name
North American Profile of ISO 19115:2003 - Geographic information - Metadata
Metadata standard version
HNAP ISO:19115 - 2003
RI_418
  Government and Municipalities of Québec; Government and Municipalities of Québec; Ministère des Ressources naturelles et des Forêts - Direction générale de l'information géospatiale ( )
https://www.donneesquebec.ca
 
 

Overviews

overview

Spatial extent

N
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E
W
thumbnail


Keywords


Provided by

Associated resources

Not available