Land Contour Lines For Southern And Northern Ontario

Land contour data for Ontario includes contour lines, approximate lines, auxiliary or interpolated lines, and depression lines. The Government of Ontario collected the data on an irregular basis, with a last update recorded in March 2026. Contour intervals vary by region: 5 meters in southern Ontario, 10 meters in the near north, and variable intervals in the Far North.

Use Cases

• Generate elevation models and slope analysis using contour line intervals of 5m and 10m.
• Map land depressions and hydrological features from the contour land depression data field.
• Analyze regional topographic variation by comparing contour data from southern Ontario, near north, and Far North zones.
• Support civil engineering projects with terrain data collected by the Government of Ontario.

Strengths

• Contour interval is precisely defined as 5 meters for southern Ontario and 10 meters for the near north.
• Data includes multiple contour types: standard, approximate, auxiliary/interpolated, and depression lines.
• Spatial coverage includes all of Ontario, segmented into southern, near north, and Far North regions.

Limitations

• Specific row count, column details, and sample data are unavailable.
• Data collection occurs on an irregular basis, potentially leading to temporal gaps or inconsistencies.
• Contour interval in the Far North is variable and depends on the source, reducing uniformity.

Provenance

Source

Government of Ontario

Collection Method

Collected on an irregular basis; specific methodology unknown.

Time Range

null

Freshness

Data was last updated in March 2026, but is collected irregularly.

Geography

Ontario, Canada, with regional distinctions for southern Ontario, near north, and Far North.