Massive and visually disruptive landfills in urban areas can potentially be seen by hundreds of thousands of people daily. Even after landfill closure, constructed slopes and ridgelines can contrast with the surrounding terrain because of their signature geometric form. This paper uses three landfills in Southern California to demonstrate the need for better visual mitigation, test the sculpting of landfill slopes through parametric digital modelling, and then discuss how the process can be enhanced for realworld application that improves visual quality while meeting engineering requirements. This is an area where landscape architects can make greater contributions in mitigating the visual impacts of landfills.