Guerrero, F., Herrera, M. and Ramírez, M. 2024. Search of Circular Surface Landforms with Negative Topography Associated with Geological Processes in a Physical Geography Framework within the Province of Pichincha, Ecuador. Revista Geográfica de Chile Terra Australis. 60, 1 (Aug. 2024). DOI:https://doi.org/10.23854/07199562.2024601.herrera.