for a copy of this paper please contact the Yukon Geological Survey; geology@gov.yk.ca.

The framework of the Cordilleran orogen of northwestern North America is commonly depicted as a 'collage' of terranes - crustal blocks containing records of a variety of geodynamic environments including continental fragments, pieces of island arc crust and oceanic crust. The series of maps available here are derived from a GIS compilation of terranes based on the map first published by Colpron et al. (2007) and more recently revised by Nelson et al. (2013). These maps are presented here in digital formats including ArcGIS file geodatabase (.gdb), shapefiles (.shp and related files), Google Earth (.kmz), as well as graphic files (.pdf). The GIS data includes terrane polygons and selected major Late Cretaceous and Tertiary strike-slip faults. Graphic PDF files derived from the GIS compilation were prepared for the Northern Cordillera (Alaska, Yukon and BC), the Canadian Cordillera (BC and Yukon), Yukon, and British Columbia. These maps are intended for page-size display (\~1:5,000,000 and smaller). Polygons are accurate to \~1 km for Yukon and BC, \~5 km for Alaska. More detailed geological data are available from both BCGC, USGS and YGS websites. Descriptions of the terranes, their tectonic evolution and metallogeny can be found in Colpron et al. (2007), Nelson and Colpron (2007), Colpron and Nelson (2009), Nelson et al. (2013) and references therein. The terrane map project is a collaborative effort of the BC Geological Survey and the 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)

for a copy of this paper please contact the Yukon Geological Survey; geology@gov.yk.ca.

The terrane map project was a collaborative effort of the BC Geological Survey and the Yukon Geological Survey. This work has undergone updating and the most recent information on Yukon terranes can be found at: http://data.geology.gov.yk.ca/Compilation/2#InfoTab

Geological map (1:1,000,000 scale) of the Yukon Territory, including the following inset maps: terrane map; physiographic regions map; glacial limits map; aeromagnetic image map; and NTS index map.

A placer mining and exploration compilation of NTS map sheet 106D, central Yukon Territory, Canada. This compilation includes the location, history and previous work, description of bedrock geology, surficial geology and mineralization. Accompanying this report is one 1:250,000-scale map (NTS 106D) which displays the locations of the placer occurrences discussed in the report.

for a copy of this paper please contact the Yukon Geological Survey; geology@gov.yk.ca.

A placer mining and exploration compilation of NTS map sheets 115I and 115J/K, southern Yukon Territory, Canada. This compilation includes the location, history and previous work, description of bedrock geology, surficial geology and mineralization, as well as lists of related references. Accompanying the text are two 1:250,000-scale maps (NTS 115I and 115J/K) which display the locations of the placer occurrences discussed in the report.

A placer mining and exploration compilation of NTS map sheet 105E, southern Yukon Territory, Canada. This compilation includes the location, history and previous work, description of bedrock geology, surficial geology and mineralization. Accompanying this report is one 1:250,000-scale map (NTS 105E) which displays the locations of the placer occurrences discussed in the report.