Late Wisconsinan McConnell Glaciation of Yukon's Whitehorse Area

The late Wisconsinan McConnell glaciation describes ice accumulations in the Coast and Cassiar Mountains of southwestern Yukon. Ice thickness over Whitehorse exceeded 1350 meters during full glacial conditions, and deglaciation created proglacial lakes that submerged valleys under up to 300 meters of meltwater. This dataset is published by the Government of Yukon and last updated in April 2026.

Use Cases

• Modeling paleo-ice sheet dynamics based on described ice lobe interactions and flow directions.
• Analyzing proglacial lake formation and meltwater drainage patterns based on described ice dam creation.
• Mapping glacial maximum extent and ice thickness based on described unconstrained flow and thickness measurements.
• Studying deglaciation patterns based on described frontal retreat, dynamic equilibrium, and readvances.
• Reconstructing paleo-landscapes and sediment transport based on described glacial and lacustrine processes.

Strengths

• Provides specific ice thickness measurements, such as exceeding 1350 meters over Whitehorse.
• Describes detailed deglaciation processes, including proglacial lakes up to 300 meters deep.
• Published by an authoritative government source (Government of Yukon).

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data may reflect geographic bias inherent to the specific map area (105D) in Yukon.

Provenance

Source

Government of Yukon

Time Range

Late Wisconsinan period

Freshness

Last updated 2026-04-17 15:57:06.843680; freshness should be verified.

Geography

Whitehorse map area (105D), Yukon, Canada