Palynological study of 18 samples, including 5 associated with Archaic Period radiocarbon dates and 1 associated with Fremont Culture artifacts, identifies a pollen sequence for the site. The inferred paleoclimatic sequence fully agrees with dated sequences from central New Mexico and the Llano Estacado.

Reports preliminary results of study of pollen samples from La Atalaya, La Cofradia and Cerro de Moctehuma archaeological sites. The 4-zone stratified pollen sequence from La Ayala allows the other two sites to be cross-dated. Subsequently published in Southern Illinois Museum Papers.