Geotechnical data comes from investigations performed by geotechnical engineers to obtain information on the physical properties of soil and rock underlying a site for proposed structures. The investigations include surface exploration and subsurface exploration of a site. In addition, site investigations will often include subsurface sampling and laboratory testing of the soil samples retrieved. The digging of test pits and trenching may also be used to learn about soil conditions at depth. Geotechnical data is relevant to our permafrost database as it contains logs of ice encountered at various depths.Yukon Geological Survey has been compiling geotechnical data from various organizations and branches. The main datasets being compiled are the following:Northern Climate ExchangeCommunity Services, Land BranchEnergy Mines and Resources, Abandoned MinesTransportation Engineering BranchAlaska Highway Borehole DatabaseAgriculture soil profilesDistributed from [GeoYukon](https://yukon.ca/geoyukon) by the [Government of Yukon](https://yukon.ca/maps) . Discover more digital map data and interactive maps from Yukon's digital map data collection.For more information: [geomatics.help@yukon.ca](mailto:geomatics.help@yukon.ca)

The BORHOLES layer represents the compilation of available data from various boreholes throughout the Yukon and near the Yukon border. This data set includes oil and gas exploration wells, mineral exploration boreholes, water supply wells and environmental monitoring well. The data points include information on the borehole location, purpose, status, depth, temperature data, water flow and chemistry data where available along with references where further detailed information may be available.

A borehole is a general term for any narrow shaft drilled in the ground, either vertically or horizontally. A borehole may be constructed for many different purposes, including: * extraction of water or fluid (e.g., oil) or gases (e.g., natural gas or methane) * for a geotechnical investigation * for an environmental site assessment * for mineral exploration * as a pilot hole for installing piers or underground utilities This data contains a continuous log of strata for each borehole as well as for geocolumns. A geocolumn is a collection of information from an examination of exposed substrate, such as in a quarry wall or along a roadway passage.

The Permafrost Information Network (PIN) geotechnical borehole database combines existing database compilations into a standard structure. The standardized database was created to be accessible from the PIN web application as a data layer. Further information regarding data compilation can be accessed from the PIN web application.

A Fire Disturbance Area represents the mapped exterior perimeter of a forest fire. Mapping is derived from a variety of sources, such as GPS points and digitized paper maps. Prior to 1998, only fires greater than 200 hectares were mapped. Since 1998, fires greater than 40 hectares have been mapped. If adequate mapping exists for fires less than 40 hectares in size, they will be included in this data class. The [Forest Fire Info Map](https://www.lioapplications.lrc.gov.on.ca/ForestFireInformationMap/index.html?viewer=FFIM.FFIM) shows active fires, current fire danger and restricted fire zones in place due to high fire danger.

Wildfire perimeters for all fire seasons before the current year. Supplied through various sources. Not to be used for legal purposes. These perimeters may be updated periodically during the year. On April 1 of each year the previous year's fire perimeters are merged into this dataset

Wildfire location points for the current fire season. This includes both active and inactive fires. Data is supplied through various sources and is updated from the operational systems every 15 minutes. These points are rolled over to Historical Fire Points on April 1 of each year. Wildfire data may not reflect the most current fire situation, and therefore should only be used for reference purposes. Wildfire data is refreshed when practicable and individual fire update frequency will vary. The information is intended for general purposes only and should not be relied on as accurate because fires are dynamic and circumstances may change quickly.

Wildfire historic incident point locations for all fire seasons before the current season. Supplied through various sources. Not to be used for legal purposes. This data includes all incidents tracked by BC Wildfire Service, ie. actual fires, suspected fires, nusiance fires, smoke chases, etc. On April 1 of each year this layer is updated with the previous fire season's data

"KFN-WRFN Overlap Resolution Boundary" means the boundary which, for the purposes of Settlement Agreements, eliminates the KFN-WRFN Overlapping Area.Distributed from [GeoYukon](https://yukon.ca/geoyukon) by the [Government of Yukon](https://yukon.ca/maps) . Discover more digital map data and interactive maps from Yukon's digital map data collection.For more information: [geomatics.help@yukon.ca](mailto:geomatics.help@yukon.ca)

Fire management zones help guide how wildfires are prioritized and managed and show where wildfires may be used to achieve ecological objectives. Zones are based on relatively constant factors, such as the level of human use or development and the presence of reliable fuel breaks.Distributed from [GeoYukon](https://yukon.ca/geoyukon) by the [Government of Yukon](https://yukon.ca/maps) . Discover more digital map data and interactive maps from Yukon's digital map data collection.For more information: [geomatics.help@yukon.ca](mailto:geomatics.help@yukon.ca)