The Geos-3 satellite altimeter observed numerous sea surface profiles along nearly repeated tracks in the western North Atlantic during its 3.5-year lifetime, enabling observation of the variation of sea surface topography along these tracks. Analysis of 14 north-going and 13 south-going sets of repeated tracks has yielded the variability of the surface at a resolution of 1¿ from 25¿ to 41¿N latitude and from 60¿ to 80¿W longitude. The observed rms variation of surface topography ranges from about 8 cm in the Sargasso Sea to a maximum of 48 cm in the Gulf Stream meander region, in agreement with known mesoscale energetics of this region.