Multiscale Hydrographic Basins for Quebec at Levels 1 to 8

Multiscale hydrographic basins from levels 1 to 8 covering the whole of Quebec. The Government and Municipalities of Québec created these layers using the Quebec Topographic Database (1:20,000) for the south and the Canadian Topographic Database (1:50,000) for the north. The dataset was last updated on 2026-04-22 and is available under a CC-BY-4.0 license.

Use Cases

• Model watershed connectivity and water flow based on the multiscale basin hierarchy.
• Analyze land-water interactions for environmental impact assessments based on the province-wide coverage.
• Integrate hydrographic data with other geospatial layers for regional planning based on the topographic source data.
• Study hydrological processes at different spatial scales based on the levels 1 to 8 classification.

Strengths

• Covers the entire province of Quebec, providing complete spatial coverage.
• Built from authoritative topographic sources: BDTQ (1:20,000) and CANVEC (1:50,000).
• Offers a hierarchical structure with eight levels of detail for multiscale analysis.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count and dataset size are unknown, which may limit suitability assessment.
• Description metadata is limited; actual data quality requires manual inspection after download.

Provenance

Source

Government and Municipalities of Québec | Gouvernement et municipalités du Québec

Collection Method

Created using maps from the Quebec Topographic Database (BDTQ) and the Canadian Topographic Database (CANVEC).

Time Range

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Freshness

Last updated 2026-04-22 18:04:41.423030; freshness should be verified.

Geography

The entire province of Quebec, Canada.