Quebec Topographic Maps at 1:100,000 Scale

Quebec territory is covered by 417 topographic map sheets at a 1:100,000 scale, split into 266 sheets for the southern region and 151 sheets for the north. This dataset provides vector and raster data depicting hydrography, vegetation, man-made constructions, and relief with less than 10-meter accuracy. It was produced by the Government of Quebec but is no longer updated, with newer reference data available through continuous information layers.

Use Cases

• Extract hydrography features like lakes over three hectares and permanent watercourses for watershed modeling.
• Analyze vegetation coverage by identifying wooded areas and peatlands larger than 13 hectares for land use studies.
• Map transport infrastructure such as passable roads and bridges for regional connectivity analysis.
• Use relief data including level curves at 20-meter equidistance for terrain visualization and slope calculation.
• Compare building footprints larger than 12,500 m2 across different map sheets for urban development analysis.

Strengths

• Covers the majority of Quebec with 417 map sheets providing broad geographic coverage.
• Data accuracy is specified as less than 10 meters for spatial features.
• Each file covers a large area of approximately 4,000 km2, equivalent to 16 sheets at a 1:20,000 scale.
• Includes multiple data formats (vector FGDB, GeoTIFF, PDF) for different analytical needs.

Limitations

• The dataset is explicitly stated as no longer updated, making it temporally stale for current applications.
• Southern and northern series are derived from different source data and generalization methods, creating potential inconsistencies.
• Specific sample data, row counts, and column definitions are unavailable, limiting pre-download assessment.

Provenance

Source

Government and Municipalities of Québec

Collection Method

Southern series data generalized from 1:20,000 scale cartographic data and SPOT satellite imagery; northern series generalized from Natural Resources Canada's CanVec product and augmented with multi-source data.

Time Range

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Freshness

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Geography

Quebec, Canada, divided into regions south and north of the 53rd parallel.