The La Playa site has a long and storied history in the arc northwestern Sonora. This site was initially visited and des Sauer and Donald Brand as their Site No. 19 Boquillas du pioneering reconnaissance conducted in 1930 with the o defining the southernmost extent of red-on-buff wares (Sa 1931: 93-94). These self-styled" archaeogeographers" wer the massive sheet-flood erosion of the floodplain that was u evident, along with the great amount of rocks, suggesting are far too many stones and the individual heaps are too weight to the notion of their use in fireplaces"; importantl noted that water was flowing with minnows and water plan the Boquillas arroyo (Sauer and Brand 1931: 93). Saue (1931: 94) also commented on the large pestles present in assemblage, suggesting a dependence on mesquite or ot seeds, and noted the presence of Glycymeris bracelets along of the cores produced in their production. This same year, Gentry reportedly collected the remains of Pleistocene faun Platyjjonus, Bison, Capromeryx, Equus, camelid, and deer fro (White et al. 2010: 61). In 1935, Arthur Woodward (1936) to apply the name" La Playa" to this site, which he describe" shell bracelet manufactory," and concluded that it was locus in the production of shell ornaments for exchange. J (pc 1992) visited the site in 1935 as well. Gordon F. Ekh a reasonably detailed description of the artifact assembla