Pronounced changes in the water mass properties of the high-latitude North Atlantic have taken place over the last decade. Substantial evidence has been provided that these changes are associated with subpolar gyre (SPG) dynamics. Presently the SPG oscillates between an extended mode and a contracted mode (Fig 1). Preliminary results of records are presented starting at ~8000 cal yr BP, after the freshwater forcing from the decaying Laurentide ice sheet had waned. The marine sediments are expected to record SPG dynamics (Fig 2). NEAP4K lies within the SPG during its extended mode but lies to the east of the SPG during its contracted mode. Core JM96-1216 in the Denmark Strait should be sensitive to varying amounts of Atlantic Water carried northward by the Irminger Current (IC), which present-day observations show is enhanced during the contracted SPG mode. For comparison, cores MD99-2259 and MD99-2256 lie on the SW Iceland shelf and record the upstream water mass properties. HM119-04GC, in the main stream of North Atlantic Current entering the Nordic Seas is hypothesized have a stronger Atlantic water signal during the extended SPG mode, when more Atlantic water reaches the Norwegian Sea. δ18Oseawater and temperature were reconstructed by paired measurements of δ18Ocalcite and Mg/Ca ratio of planktonic foraminifera. Faunal assemblages and mineralogy are available for some of the cores. These preliminary results are part of an overarching project to reconstruct the evolution of the SPG during the Holocene and map the northern and eastern boundaries of the gyre at different time slices.