To support “Mountain Aesthetics and Ecology: The Conceptual Heritage of Alexander von Humboldt in the Americas,” a colloquium co-organized by the Instituto de Investigaciones Estéticas and the Terra Foundation. An international array of scholars of art history, geology, and urban studies, as well as artists and philosophers interested in the ecological aesthetics of landscape representation, will discuss and share their perspectives on the work of Alexander von Humboldt and his contributions to environmental research, stimulating dialogue between the sciences, humanities, and visual arts.