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This summary of geological studies in the Mt. Hundere area of central Watson Lake map sheet was undertaken as part of a Master's thesis completed at Queen's University in 1977. Mapping of the area was extended in August 1978. This report presents the results of the most recent mapping.

Quaternary geology investigations in the Coal River map sheet (NTS 95D) during the 2009 field season focused on characterizing surficial materials and their distributions, with attention to the eastern half of the map sheet which has not been previously mapped. Moraine deposits are relatively thin in valley bottoms (<2 m) and become thinner and more intensely colluviated on upland surfaces. Streamlined glacial landforms and till plains are pronounced in the southern half of the map sheet. Surficial deposits are limited in many east-trending meltwater canyons, and in the northeastern corner of the map sheet. The map area was glaciated most recently by the Cordilleran Ice Sheet, which advanced from the south and west. Meltwater from montane glaciers and the Laurentide Ice Sheet in adjacent map sheets likely contributed to extensive glaciolacustrine, glaciofluvial and glaciodeltaic deposits in north-trending valleys that were dammed by the Cordilleran Ice Sheet.

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This is a product of the Gold and base metals–southeastern Yukon (Selwyn basin) project funded jointly by the Geo-mapping for Energy and Minerals (GEM) program of Natural Resources Canada, and the Yukon Geological Survey (Government of Yukon).

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Geological map including geological cross sections, mineral occurrences and preliminary isotopic age determinations.

This map presents an interpretation of the bedrock geology of the Livingstone Creek area that has been revised from a previous Open File map (YGS OF2005-9). The revised interpretation was guided by the acquisition of a detailed VTEM Plus geophysical survey over the area in spring 2016 (YGS OF2016-34 and 35; 200 m line spacing). The detailed magnetic data were particularly useful for increasing the accuracy of contact locations, and identifying additional structures. The electromagnetic survey identifies a number of conductors across the area, some of which remain unexplained (see Colpron et al. in YEG 2016 for discussion). Bedrock exposure is locally hindered by Quaternary glacial and fluvial sediments, particularly in the South Big Salmon valley. Projection of the geology is guided by the geophysics in areas of extensive cover.