As a vital component of the current effort to revitalize Rosario, Argentina's industrial waterfront, Billboard Park is a recreation landscape that occupies both the horizontal and vertical dimensions of the site in order to provide an open lawn as well as river vistas to the public.  Part of a public/ private partnership and constrained to a triangular plot of land set away from the water's edge, Billboard Park rises up to form a vertical landscape, with its green side facing the river and its asphalt side facing the highway and neighborhood beyond.  A lightweight, soil-free growth medium is used to generate a vertical garden across a concrete structural honeycomb.  The open structural pattern organizes both the horizontal and vertical planes and provides a number of occupyable niches as well as a dynamic visual icon for Rosario.