Yukon Surficial Geology Maps with 80% Territory Coverage

Yukon Geological Survey compiled over 195 surficial geology maps into standardized GIS datasets. The compilation provides approximately 80% coverage of Yukon territory, with maps ranging in scale from 1:250,000 to 1:10,000. Polygon attributes include surficial material, texture, age, surface expression, and geomorphological processes.

Use Cases

• Model permafrost distribution and thermokarst depressions using point and polygon feature attributes.
• Assess granular resource potential by analyzing surficial material and texture data across polygon features.
• Support geotechnical engineering and infrastructure planning by mapping landslide, fault, and escarpment line features.
• Reconstruct glacial history using mapped glacial limits, moraines, eskers, and drumlin point features.

Strengths

• Compilation integrates over 195 individual source maps from multiple agencies.
• Provides approximately 80% spatial coverage of the Yukon territory.
• Includes standardized attributes for polygons, lines, and points using the Yukon terrain classification system.

Limitations

• Contains spatial overlap between maps at different scales (1:250,000 to 1:10,000), which may require resolution for analysis.
• Original maps were produced by various agencies, potentially introducing inconsistencies in source data quality or methodology.

Provenance

Source

Yukon Geological Survey, compiling maps from Geological Survey of Canada, Yukon Government, universities, and others.

Collection Method

Compilation and standardization of existing surficial geology maps into a unified GIS format.

Time Range

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Freshness

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Geography

Yukon territory, Canada, with approximately 80% coverage.