This paper examines the dynamics of introducing IT/IS into local municipalities in Colombia. It addresses the factors that drive the introduction of geographical information systems into public organizations. The analysis is based on data generated from documents and direct interviews in two local municipalities. The findings indicate that technological innovations are introduced by middle managers. These managers find ways to take advantage of existing information technologies and thereby transform their organizational processes. External catalysts such as new political environments combined with internal factors, such as local champions and technological awareness, were necessary for mobilizing resources and breaking organizational barriers that hinder innovations.