This is the second preliminary report of excavations and analyses of Opovo-Ugar Bajbuk, a Neolithic settlement of the Vinča-Pločnik culture located in the lower Tamiš river valley, NE Yugoslavia. The Opovo Archaeological Project began in the summer of 1983; this report covers the 1985-1987 field seasons. Work at Opovo has continued to reveal more about the unusual reliance placed by the site's inhabitants on wild food resources, the apparent lack of long-term settlement occupation, and the social organization of production and consumption. An unexpected find of the 1987 season was a fragment of linen, the earliest direct evidence for textile production in European prehistory. Detailed examination of methods of house construction and house destruction—part of an effort to investigate the role of households at the site—led to the discovery of the first two-story dwelling ever encountered at a Vinča site. The site of Opovo-Ugar Bajbuk is providing new light on previously unknown dimensions of variation within the Vinča culture. [ABSTRACT FROM AUTHOR]