Yukon Oil and Gas Exploration Regions. Based on the Resource Assessments completed and the 2003 Yukon Digital Bedrock Geology. Created by Oil and Gas Management Branch under guidance from Yukon Geological Survey. 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)

Locations of drillholes for minerals (substances such as quartz and gemstones) in NSW and associated information such as depth and date drilled. This is the mineral subset of the NSW drilling dataset available from Geoscientific Data Warehouse. The drillhole data has been compiled over time from various sources including mineral exploration reports and departmental records. It provides drill collar information for mineral drillholes and associated data including classification of drilling purpose, drill type, licencee/driller information, date the hole was drilled and depth of hole drilled, azimuth/dip and references. This data is part of the New South Wales Geoscientific Data Warehouse (NSW GDW) series.

Point location of all historic and active oil and gas wells in the Yukon. This file includes unique identifier, region, classification, status, well name, date drilled, related company and product. 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)

This paper presents new data from historical drill core and outcrop specimens from Macmillan Pass, Yukon. Whole rock lithogeochemical data are presented from analyses of core from three drillholes at the Tom property. The core covers intervals ranging from the Middle Devonian Road River Group (Sapper Formation) to the Upper Devonian Earn Group (Portrait Lake Formation–Fuller Lake Member) and includes the Macmillan Pass volcanic suite that occurs at the Road River–Earn Group contact. Samples were collected to characterize the depositional history of Middle–Upper Devonian fine-grained rocks in the region to aid with paleogeographical reconstructions, depositional models, improve age control and to aid in correlation of thick shale units. Baseline geochemical profiles and sedimentology for all fine-grained units indicate turbidity current deposition in a range of shelf to basinal settings and variable oxic to anoxic conditions. Additionally, eleven existing Middle Devonian conodont collections were re-examined to provide better biozone refinements and a tighter constraint of the contact between the Road River Group (Sapper Formation) and Earn Group (Portrait Lake Formation) to the Late Eifelian australis-ensensis biozones.

Preliminary locations for intermediate depth temperature gradient holes and/or resource confirmation wells based on compilation of geological, geophysical and geochemical data prior to carrying out the DOE-funded reflection seismic survey.

The extent of Sedimentary Rock as defined by Yukon Geological Survey, data is based on "GSC Open File 4673" . 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)

A drilling program was conducted in fall 2023 to install deep (up to 35 m) ground temperature monitoring boreholes in communities at risk from permafrost thaw. These boreholes will serve as long-term reference sites in both undisturbed and developed locations within or adjacent to communities. These boreholes also filled knowledge gaps that included the thickness of permafrost, and temperature data at the bottom of permafrost. Prior to this program, only 3 of the 34 permafrost-monitoring boreholes managed by the Yukon Geological Survey recorded temperatures through to the bottom of permafrost; furthermore, none of these boreholes are in the extensive discontinuous or continuous permafrost zones. Fifteen boreholes were drilled in five different communities across the Yukon: Dawson City, Mayo, Ross River, Beaver Creek and Haines Junction. Permafrost was encountered in 10 of the 15 boreholes, and the bottom of permafrost, or bedrock, was reached in at least one borehole in each community.

In 2004, the Yukon Oil and Gas Management Branch in Whitehorse, arranged with the National Energy Board (NEB) in 2004 to compile formation tops for the Yukon oil and gas wells. Previously, Yukon well tops had been picked by a number of geologists from the Geological Survey of Canada (GSC). Many of these well tops were published in various GSC publications and in several editions of the NEB Schedule of Wells. This report is an effort to update and revise the formation tops and to offer a consistent data set spanning the entire territory. In total, 73 oil and gas were drilled during the period 1957 to 2005. The majority of these wells were drilled between 1957 and 1985, however, there was been drilling activity in the Territory in 2004 and 2005. Formation tops for this dataset were picked using wireline logs exclusively. The data are presented in both imperial and metric values to accommodate both historical and recent well data, as well as user preference. The data set is complemented by the Yukon Stratigraphic Correlation Chart v. 3.04. Formation tops are useful for the regional mapping of subsurface horizons. A variety of information can be obtained from this type of mapping, including structural trends and facies boundaries. Using regional correlation of formation tops, cross-sections can be constructed to aid in the understanding of basin morphology. The List of Wells and Formation Tops, Yukon Territory, version 1.0, is an evolving dataset. We encourage comments and notification of any errors. This dataset will be updated regularly when new research warrants revision.

Oil and gas well reports to be used in conjunction with Oil and Gas Wells - 50k. 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)