Blue Lake Location Map

(a) Map of the North American Arctic showing Blue Lake (white box) in the Brooks Range (dark grey shaded area) and other records discussed in the text (GKSD = Great Kobuk Sand Dunes, TL = Takahula Lake, FL = Farewell Lake, MtL = Mt. Logan, U60 = Lake U60, ML = Marcella Lake, US = Upper Soper Lake, DL = Donnard Lake, TB = Tuborg Lake, MrL = Murry Lake, and lake C2. (b) Topographic map of the Blue Lake drainage basin (shaded grey with a dashed outline), and the Blue Lake glacier in the upper part of the watershed. (c) Blue Lake with core locations