We present data collected for a newly funded NSF project to reconstruct the Late Quaternary-Holocene behavior of Jakobshavns Isbrae (JAKIB) in western Greenland, one of the largest ice streams draining the modern Greenland Ice Sheet (GIS). Two sediment cores recovered in 2007 during MS Merian cruise MSM 05/03 to West Greenland were contributed to this project by the Baltic Sea Research Institute. The two cores, one from the southern entrance to Disko Bugt (343300) and the other, in the channel north of Disko (343390) are expected to provide full Holocene records of glacial activity and paleoceanography (Fig. 1). The poster will present the initial analyses that have been completed to date, including XRF compositional data, and magnetic susceptibility date collected on board the ship, and lithofacies and IRD analyses determined from x-radiography at CU. The project will involve future work on provenance from x-ray diffraction and radiogenic isotope analyses and paleoceanographic research based on foraminiferal assemblages and oxygen isotope analyses. Chronologies of these cores will be based on radiocarbon dating and potentially, on potential tephra markers. Additional cores and seismic data for this project will be obtained from a cruise on the Sir James Clark Ross in 2009 with colleagues from the University of Durham and Cambridge University, Great Britain.