This map of the first vertical derivative of the magnetic field was derived from data acquired during an aeromagnetic survey carried out by EON Geosciences Inc. during the period between April 12, 2010 to June 2, 2010. The data were recorded using a split-beam cesium vapour magnetometer (sensitivity = 0.005 nT) mounted in the tail boom of a Piper Navajo aircraft. The nominal traverse and control line spacings were, respectively, 800 m and 2 400 m, and the aircraft flew at a nominal terrain clearance of 250 m. Traverse lines were oriented N45°E with orthogonal control lines. The flight path was recovered following post-flight differential corrections to the raw Global Positioning System data and inspection of ground images recorded by a vertically-mounted video camera. The survey was flown on a pre-determined flight surface to minimize differences in magnetic values at the intersections of control and traverse lines. These differences were computer-analysed to obtain a mutually levelled set of flight-line magnetic data. The levelled values were then interpolated to a 200 m grid. The International Geomagnetic Reference Field (IGRF) was not removed from the magnetic field.

Reprocessing of magnetic data for Yukon was performed between November 2016 and March 2017. Aeromagnetic data were compiled, data of different resolutions were merged, and a series of images individually levelled for each map sheet were produced. For each 250k-scale map, the following magnetic derivative maps were produced: 1. Residual Total Magnetic Field; 2. Reduced-to-Pole Magnetic Field (RTP); 3. First Vertical Derivative of the Reduced-to-Pole Magnetic Field (RTP_VD); and 4. Tilt Derivative of the Reduced-to-Pole Magnetic Field (RTP_TDR). These maps are provided as pdfs, geotiffs and Geosoft grid files. Colour ramps/legends are provided for each map.

This map of the first vertical derivative of the magnetic field was derived from data acquired during an aeromagnetic survey carried out by EON Geosciences Inc. in the period between April 10, 2009 and September 16, 2009. The data were recorded using split-beam cesium vapour magnetometers (sensitivity = 0.005 nT) mounted in each of the tail booms of a Piper Navajo and a Cessna 206 aircraft. The nominal traverse and control line spacings were, respectively, 800 m and 2 400 m, and the aircraft flew at a nominal terrain clearance of 250 m. Traverse lines were oriented N90°E with orthogonal control lines. The flight path was recovered following post-flight differential corrections to the raw Global Positioning System data and inspection of ground images recorded by a vertically-mounted video camera. The survey was flown on a pre-determined flight surface to minimize differences in magnetic values at the intersections of control and traverse lines. These differences were computer-analysed to obtain a mutually levelled set of flight-line magnetic data. The levelled values were then interpolated to a 200 m grid. The International Geomagnetic Reference Field (IGRF) was not removed from the total magnetic field.

This aeromagnetic survey was carried out by Goldak Airborne Surveys from February 17, 2014 to March 21, 2014. The data were collected using split-beam cesium vapour magnetometers mounted in each of the tail booms of 2 Piper Navajo aircraft. Nominal traverse and control line spacings were 400 and 1400 m, and the nominal terrain clearance was 125 m.

This aeromagnetic survey was carried out by Geo Data Solutions GDS Inc. from January 12, 2018 to March 16, 2018. The data were recorded using split-beam cesium vapour magnetometers mounted in the tail booms of a Beechcraft King Air and a Piper Navajo. The nominal traverse and control line spacings were 400 m and 2400 m, and the aircraft flew at a nominal terrain clearance of 150 m. Travers lines were oriented N45°E with orthogonal control lines.

Long-term tenure map (managed forest code 11) used in the Forest Management in Canada, 2020 story map. Long-term tenure map (managed forest code 11) with lands having more than five years volume- or area-based tenure or effectively having the equivalent, such as consistently recurrent commercial forest tenure with associated forest management activity. The Long-term tenure map is used in the Story Map of Forest Management in Canada, 2020 (Aménagement des forêts au Canada, 2020) and includes the following tiled layer:Tile Layer of Long-Term Tenure Managed Forest Code 11: 2020

New geochemical data from re-analysis of archived stream sediment samples have been assessed using weighted sums modeling and catchment basin analysis as described in the methodology report that accompanies this map (YGS Open File 2015-10). Both commodity and pathfinder element abundances are evaluated to highlight areas that show geochemical responses consistent with a variety of base and precious-metal mineral deposit types. The results of modeling, completed using two approaches, are presented as a series of catchment maps and associated data files. This release is part of a regional assessment of stream sediment geochemistry that covers a large part of Yukon.

This dataset shows official trails and points of interest within Wildlife Management Areas in Manitoba. This dataset shows official trails and points of interest within Wildlife Management Areas (WMAs) in Manitoba. Trails The purpose of this layer is to show recognized trails in Manitoba's wildlife management areas (WMAs). These include designated trails for vehicles, and hiking, biking, and cross-country ski trails. Fields included (alias (field name): field description) OBJECTID (OBJECTID): sequential unique whole numbers that are automatically generated WMA (WMA_Name): wildlife management area name Trail Name (Trail_Name): trail name or number Type (Type): trail type (e.g., walking or biking) Restrictions (Restrictions): use restrictions for the trail Points of Interest The purpose of this layer is to show important points of interest within Manitoba's wildlife management areas (WMAs). These include watercraft access points, interpretative kiosks, trail heads, picnic areas, primitive toilets, and ecological features like snake dens. Fields included (alias (field name): field description) OBJECTID (OBJECTID): sequential unique whole numbers that are automatically generated WMA (WMA_Name): wildlife management area name Feature Name (Feat_Name): name of the point of interest Type (Type): type of feature (e.g., trailhead, interpretive centre) Details (Details): details about the point of interest More information (Info): link to additional information about the point of interest, when available

This dataset shows official trails and points of interest within Wildlife Management Areas in Manitoba. This dataset shows official trails and points of interest within Wildlife Management Areas (WMAs) in Manitoba. Trails The purpose of this layer is to show recognized trails in Manitoba's wildlife management areas (WMAs). These include designated trails for vehicles, and hiking, biking, and cross-country ski trails. Fields included (alias (field name): field description) OBJECTID (OBJECTID): sequential unique whole numbers that are automatically generated WMA (WMA_Name): wildlife management area name Trail Name (Trail_Name): trail name or number Type (Type): trail type (e.g., walking or biking) Restrictions (Restrictions): use restrictions for the trail Points of Interest The purpose of this layer is to show important points of interest within Manitoba's wildlife management areas (WMAs). These include watercraft access points, interpretative kiosks, trail heads, picnic areas, primitive toilets, and ecological features like snake dens. Fields included (alias (field name): field description) OBJECTID (OBJECTID): sequential unique whole numbers that are automatically generated WMA (WMA_Name): wildlife management area name Feature Name (Feat_Name): name of the point of interest Type (Type): type of feature (e.g., trailhead, interpretive centre) Details (Details): details about the point of interest More information (Info): link to additional information about the point of interest, when available

This aeromagnetic survey was carried out by Geo Data Solutions GDS Inc. from January 12, 2018 to March 16, 2018. The data were recorded using split-beam cesium vapour magnetometers mounted in the tail booms of a Beechcraft King Air and a Piper Navajo. The nominal traverse and control line spacings were 400 m and 2400 m, and the aircraft flew at a nominal terrain clearance of 150 m. Travers lines were oriented N45°E with orthogonal control lines.