Surficial geologic map of the Circle mining district, Alaska, Report of Investigation 95-2C, presents results from a geologic investigation of surficial deposits in parts of the Circle B-1, B-2, B-3, B-4, C-2, C-3, and C-4 quadrangles. The surficial deposits of the Circle mining district have long been sources of placer gold and even alluvial diamonds. Throughout most of the map area, the bedrock surface is blanketed by periglacial slope deposits consisting of silty rubble with angular and subangular clasts of local bedrock. This unconsolidated unsorted material was produced by intense frost shattering of bedrock and was spread downslope by mass movement processes. These processes are still active in the area today. In valley bottoms, terrace and floodplain alluvium consist of coarse, angular to subangular gravels. In upland valleys, the locally auriferous are commonly mixed with slope debris. Radiocarbon dating of organic sediments ranges in age from mid-Wisconsonian to Holocene. Although frost is discontinuous, sentiments in the valley are generally frozen and locally contain bones of large extinct vertebrae. Although landforms have been extensively modified by erosion, frost action, and mass movement, recognizable glacially modified valleys, silty gravel, and till provide evidence of at least one former glaciation. Glaciation of North Harrison Creek probably had a significant effect on the distribution of nuggets there. The complete report, geodatabase, and ESRI fonts and style files are available from the DGGS website: http://doi.org/10.14509/2516.