Data for seismic surveys prior to 1999 were obtained from National Energy Board (NEB) as points data (end points and bends) in Excel file format with basic information only. The NEB dataset was not comprehensive. Seismic lines coordinates' data for some of the earliest surveys recorded during 1960s and 1970s were recorded in NAD27 and contained location errors. In addition some data were not converted to NAD83 datum currently in use therefore resulting in even larger error. Starting at 1999 seismic lines location data are provided to the Government of Yukon by exploration companies as part of their statutory reporting requirements. 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

This layer is part of the Geological Survey of Canada's earthquake monitoring network. There are some blank fields toward the beginning of the listing, from the time the network was being installed and hence parameters were often unknown. Also, all depths in the table are "fixed" to a depth which is an integer multiple of 5km, according to lowest obtainable residuals and known crustal structure. The number and magnitude of located events are also dependent on the time recorded, as the magnitude threshold lowered as more stations were installed. The larger, potentially damaging earthquakes, however, were likely recorded from the inception of the network as these events produce waves which reach the entire western network. 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

Created for distribution by the GeoYukon application as a comprehensive resource for all publicly available Oil and Gas information in the Yukon government. This data may be used directly by other applications to dynamically display Yukon data; however, it may be subject to change as data sets are updated or added.

This map service provides access to the Geophysical Survey Index datasets shown on the GeoAtlas application. **Please Note – All published Saskatchewan Geological Survey datasets, including those available through the Saskatchewan Mining and Petroleum GeoAtlas, are sourced from the Enterprise GIS Data Warehouse. They are therefore identical and share the same refresh schedule. This map service provides access to the Geophysical Survey Index datasets shown on the GeoAtlas application. It will contain data related to Lithoprobe Lines, NATGAM Spectrometer and Aeromagnetic Survey Indexes data.

This map service provides access to the Geophysical Survey Index datasets shown on the GeoAtlas application. **Please Note – All published Saskatchewan Geological Survey datasets, including those available through the Saskatchewan Mining and Petroleum GeoAtlas, are sourced from the Enterprise GIS Data Warehouse. They are therefore identical and share the same refresh schedule. This map service provides access to the Geophysical Survey Index datasets shown on the GeoAtlas application. It will contain data related to Lithoprobe Lines, NATGAM Spectrometer and Aeromagnetic Survey Indexes data.