This paper deals with public archaeology as a scientific activity as well as practical experience. It starts by discussing the theoretical issues relating to public archaeology in Brazil, and then goes on to discuss a case study. It concludes by emphasizing the possibilities open toward a critical and socially employed discipline.2721330BECKER, ETHOMAS, JSTIESS, E. Exploring uncommon ground: sustainability and the social sciences. In BECKER, E.JAHN, T. (eds) Sustainability and the Social Sciences.Paris: UNESCO/ISOE/Zed Books Becker, 0.EJAHN, T. sustainability and the Social Sciences, Paris: UNESCO/ISO/Zed Books, 1999DE BLASIS, P. A.ROBRAHN-GONZÁLEZ, E. M. Dam contract archaeology. In Brazil: Some prospects and a case study at the Amazonian border'. International Workshop on Cultural Heritage Management and Dams, BID, 2003DE VRIES, B., (2003) Search of Sustainability: What Can We Learn from the Past, , Paper for the International Symposium on World System History and Global Environment Change, Utrecht: Lund UniversityFAULKNER, N., Archaeology from below (2000) Public Archaeology, 1, pp. 21-33FUNARI, P.P.A., Public archaeology from a Latin American perspective (2001) Public Archaeology, 1, pp. 239-243FUNARI, P.P.A., Class interests in Brazilian archaeology (2002) International Journal of Historical Archaeology, 6, pp. 209-216FUNARI, P. P. A. A Antiguidade Clássica: A Historia e a Cultura a Partir dos Documentos. Campinas: Ed.Unicamp (2nd edition), 2003aFUNARI, P.P., Dictatorship, democracy, and freedom of expression (2003) International Journal of Historical Archaeology, 7, pp. 233-237FUNARI, P.P., Public archaeology in Brazil (2004) Public Archaeology, , MERRIMAN, N, ed, London: RoutledgeFunari, P.P.A., PELEGRINI, S., (2006) Patrimônio Histórico e Cultural, , Rio de Janeiro: Jorge Zahar EditorLITTLE, B.J., Archaeology as a shared vision (2002) Public Benefits of Archaeology, , LITTLE B. J, ed, Gainesville: University Press of FloridaMCMANAMON, F.P., Archaeological messages and messengers (2000) Public Archaeology, 1, pp. 5-20MARX, K., (1973) On Society and Social Change, , Chicago: Chicago University PressORSER, C.E., (2004) Historical Archaeology, , 2nd ed, Upper Saddle River, NJ: PearsonPROUS, A., (2006) O Brasil antes dos Brasileiros, A Pré-História do nosso país, , Rio de Janeiro: ZaharSMITH, G.S., EHRENHARD, J.E., Protecting the past to benefit the public (2002) Public Benefits of Archaeology, pp. 121-129. , LITTLE, B. J, ed, Gainesville: University Press of FloridaSTIGLITZ, J., (2002) Globalization and its discontents, , New York: Norton