Surficial Geology Map Index

The Yukon Geological

Survey (YGS) has compiled over 195 surficial geology maps into a standardized

GIS format, providing approximately 80% coverage of the territory. The maps

range in scales from 1:250,000 to 1:10,000 with spatial overlap between scales.

The original maps were produced by various agencies, including the Geological

Survey of Canada, YGS, Yukon Government, universities, and the City of

Whitehorse.

All original feature

descriptions have been preserved and also converted to standardized values

using the Yukon terrain classification system. The compilation includes 4 GIS

datasets and supporting documents available for download via YGS integrated data system (YGSIDS) or GeoYukon. A .lyr file is provided to symbolize feature classes and differentiate overlapping maps at

different scales. Additionally, there is a surficial geology map index.

The polygon

attributes captured include surficial material, texture, age, surface

expression, and geomorphological processes.

Line features

include geological contacts, glacial limits, glacial landforms (cirques,

arêtes, eskers, meltwater channels, moraines), and non-glacial landforms

(faults, lineaments, landslides, escarpments).

Point features

include field station, fossil and sample locations, glacial landforms

(erratics, kames, kettles, drumlins, flutings), permafrost features (pingos,

palsas, patterned ground, thermokarst depressions), and other non-glacial

landforms (landslides, tors).

The map index

provides information on each map publication such as author, map title, map

scale, publisher.

These data are

valuable for land-use applications in the territory, including: mineral and

placer exploration, geotechnical engineering, infrastructure planning, granular

resource assessments, permafrost modeling, agricultural assessments, forest

management, and biophysical or ecological land classification.

Distributed from GeoYukon by the Government of Yukon. Discover more digital map data and interactive maps from Yukon's digital map data collection.

For more information: geomatics.help@yukon.ca