Description

The [Upper Liard flood hazard mapping study](https://floods.service.yukon.ca/pages/final-flood-maps) was completed between May 2025 and March 2026. Learn more by visiting the [Yukon Flood Hub](https://floods.service.yukon.ca). In the resources section below, you can find the project summary, technical report, "What We Heard" report, GIS data files, and flood maps for specific areas. "AEP" in the flood map filenames below refers to "Annual Exceedance Probability", the annual likelihood of a flood occurring, expressed as a percentage. The flood scenarios used for mapping in the Yukon are the following: - 0.5% event (1-in-200 chance of occurring in any year), - 1% event (1-in-100 chance of occurring in any year), and - 5% event (1-in-20 chance of occurring in any year). For more information see [What is flood mapping?](https://floods.service.yukon.ca/pages/flood-mapping) or email [FloodMapping@yukon.ca](mailto:FloodMapping@yukon.ca). ### See also - [Carmacks flood hazard maps](https://open.yukon.ca/data/datasets/carmacks-flood-hazard-maps) - [Dawson City / Klondike Valley flood hazard maps](https://open.yukon.ca/data/dawson-city-klondike-valley-flood-hazard-maps) - [Old Crow flood hazard maps](https://open.yukon.ca/data/old-crow-flood-hazard-maps) - [Southern Lakes flood hazard maps](https://open.yukon.ca/data/datasets/southern-lakes-flood-hazard-maps) - [Teslin flood hazard maps](https://open.yukon.ca/data/datasets/teslin-flood-hazard-maps)

Resources

Name	Format	Description	Link
Upper Liard map viewer	HTML		https://experience.arcgis.com/experience/405184f25bb34dedb56e672c46c356b9
Upper Liard technical report	PDF		https://map-data.service.yukon.ca/WRB_Flood_Maps/UpperLiard/20260316%20Upper%20Liard%20Flood%20Study.pdf
Upper Liard Project Summary	PDF		https://map-data.service.yukon.ca/WRB_Flood_Maps/UpperLiard/20260325-UpperLiard-Plain_language_summary.pdf
Upper Liard "What We Heard" report	PDF		https://map-data.service.yukon.ca/WRB_Flood_Maps/UpperLiard/20260416-What_We_Heard-Upper_Liard_flood_mapping.pdf
Upper Liard FGDB (file geodatabase) data	Unknown		https://map-data.service.yukon.ca/WRB_Flood_Maps/UpperLiard/_GIS_Data/UpperLiard.gdb.zip
Upper Liard SHP (shapefile) data	ESRI Shape		https://map-data.service.yukon.ca/WRB_Flood_Maps/UpperLiard/_GIS_Data/UpperLiard.shp.zip
Upper Liard flood hazard mapbooks	HTML		https://map-data.service.yukon.ca/WRB_Flood_Maps/UpperLiard/Mapbooks/
Upper Liard 0.5% AEP flood hazard maps	HTML		https://map-data.service.yukon.ca/WRB_Flood_Maps/UpperLiard/Upper%20Liard%200.5%25%20AEP%20Flood%20Hazard%20Maps/
Upper Liard 0.5% AEP with climate change flood hazard maps	HTML		https://map-data.service.yukon.ca/WRB_Flood_Maps/UpperLiard/Upper%20Liard%200.5%25%20AEP%20with%20Climate%20Change%20Flood%20Hazard%20Maps/
Upper Liard 1% AEP flood hazard maps	HTML		https://map-data.service.yukon.ca/WRB_Flood_Maps/UpperLiard/Upper%20Liard%201%25%20AEP%20Flood%20Hazard%20Maps/
Upper Liard 1% AEP with climate change flood hazard maps	HTML		https://map-data.service.yukon.ca/WRB_Flood_Maps/UpperLiard/Upper%20Liard%201%25%20AEP%20with%20Climate%20Change%20Flood%20Hazard%20Maps/
Upper Liard 5% AEP flood hazard maps	HTML		https://map-data.service.yukon.ca/WRB_Flood_Maps/UpperLiard/Upper%20Liard%205%25%20AEP%20Flood%20Hazard%20Maps/
Original metadata (https://open.yukon.ca)	HTML		https://open.yukon.ca/data/1ba1bf92-2b25-424d-aa41-46015d051154

Tags

Topics

Categories