The excavations and geological studies made in 2004-2006 at the Paleolithic site of Crvena Stijena in Montenegro are described in preliminary form. Earlier exca vations hadre moved virtually all of the layers later than the Middle Paleolithic, as well as a large part of the Mid dle Paleolithic, leaving a 9 m tall profile through these deposits. A small deposit of in tact Mesolithic layersr emained, however, and the Mesolithic materials recov ered in 2004-2006 are pre sented in some detail, along with accompanying 14C dates. Geological in vestigations were made of the entire remaining section of Middle Paleolithic deposits. These studies demon strated that the numerous charcoal- and ash-rich layers visible in section are in situ hearths. Lying directly on top of the Middle Paleolithic layers is a layer of volcanicash, which was identified as the Y5 tephra, or Campanian Ignimbrite, dated to 39,000-41,000 BP. The 2004-2006 excavations did not reach the Middle Paleolithic layers, but access has been pre pared for future excavations in these lay ers. So far, only a few Middle Paleolithic tools and a single Neanderthal tooth have been recovered from the cleaning of the profile of these layers.