In May 2008, samples were collected from a 4.35m deep snow pit and an 18.77m long, 8.2 cm diameter firn core (drilled in the bottom of the pit), approximately 1 km south of Kahiltna Pass (KPass) at 2970m a.s.l, Denali National Park, Alaska. An additional snowpit at the Kahiltna base camp (2195ma.s.l.; 11km south-southeast of KPass) was sampled for chemistry. Hourly AWS data were recorded at the base camp from May 2008 to May 2009. Ground penetrating radar (GPR) raw data were also collected. Kahiltna Pass Site: 63.07°N, 151.17°W, 2970ma.s.l. References: Kelsey, E., C. Wake, K. Kreutz, and C. Osterberg. 2010. Ice layers as an indicator of summer warmth and atmospheric blocking in Alaska. Journal of Glaciology, Vol. 56, No. 198, pp. 715-718. Campbell, S., K. Kreutz, E. Osterberg, S. Arcone, C. Wake, K. Volkening, and D. Winski. submitted. Flow dynamics of an accumulation basin: A case study of the Upper Kahiltna Glacier on Mount McKinley, Alaska. Journal of Glaciology, submitted. Campbell, S., K. Kreutz, E. Osterberg, S. Arcone, C. Wake, D. Introne, K. Volkening, and D. Winski. submitted. Melt regimes, internal stratigraphy, and flow dynamics of three glaciers in the Alaska Range. Journal of Glaciology, submitted.