Recent exploratory drilling at Abric Romaní reveals that carbonate tufas similar to the archeologically rich levels excavated to date extend at least 30m beneath the current base of excavation. The present project focused on sampling and measuring a suite of new U-series dates on core samples to determine whether reliable dates could be obtained from the older tufas and, if so, their temporal extent.Using relatively small (~100mg), carefully selected samples analyzed by inductively coupled plasma mass spectrometry, we obtained a total of 20 dates for 10 core samples and one sample near the base of the current excavation. Corrections for thorium from contaminating detritus were generally negligible, as indicated by a median 230Th/232Th activity ratio of 360. At selected levels in the sequence, two or three coeval samples were prepared and analyzed in order to determine the reproducibility of their dates. Reproducibility at most levels was similar to analytical errors, consistent with rapid carbonate deposition followed by evolution of closed U–Th systems. In contrast in the sample nearest the base of the core, scatter of dates beyond analytical errors was observed among sub-samples, probably indicating failure of the U–Th system to remain closed.The dates, which preserve stratigraphic order in all cases, range from ~55ka for a sample from level N of the existing excavation to ~110ka at the base of the core. The new dates show that tufas at Abric Romaní extend at least to early Marine Isotope Stage (MIS) 5. Mean accumulation rates in the core varied widely, from a minimum of 17cm/ka during the later parts of MIS 5 to a maximum of 130cm/ka during the Last Interglacial in early MIS 5, suggesting that a wetter hydroclimate prevailed in the region during periods of low global ice volume. The new dates show that burned travertine and sand intersected by the drill-core, which are likely indicators of human presence, are as old as ~100ka. Thus, evidence for human presence at Abric Romaní now extends over ~60thousandyears.