Surficial geology, Patry Lake, British Columbia / [by] D.H. Huntley ... [et al.]. : M183-1/128-2013E-PDF

"Canadian Geoscience Map 128 depicts the surficial geology over some 790 km2 covered by the Patry Lake map sheet (NTS 94-O/06) in northeastern British Columbia. The map area encompasses the southeastern limit of the Liard Plateau, which terminates along the southwest to northeast-oriented Maxhamish Escarpment; and the southwest limit of the Fort Nelson Lowland. The plateau and lowland are incised by east- and south-draining tributaries to the Fort Nelson River. Bedrock is mantled by unconsolidated earth materials dating to the Late Pleistocene (Late Wisconsinan Glaciation, > 25 ka to ca. 10 ka) and non-glacial Holocene (ca. 10 ka to present). Deposits of till, green on the map, are suitable for placement of infrastructure. Glaciofluvial and eolian deposits with mineral, aggregate, and groundwater potential are coloured orange and buff. Slopes disturbed by landslides and debris flows appear brown. Glaciolacustrine and organic deposits with sporadically discontinuous permafrost are coloured purple and grey. Alluvial deposits prone to flooding, erosion, and sedimentation appear yellow on the map"--Abstract.

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