Three samples were taken from the Klondike Pit in DisappointmentValley, Colorado for optically stimulated luminescence age dating. Sampleswere gathered form a vertical transect bottom to top and were dated at 163.7 ±32.1 , 146.6 ±29.3, and 97.1 ±18.4 ka respectively.Field observations show evidence of sedimentarystructures commonly associated with glaciofluvial processes. The presence of unconsolidated cobbles with interbedded fine sands are an indication of a braided river system which is the common fluvial system found within glacial outwash deposits.