181 16 Mapping Invisible and Inaccessible Areas of Brazilian Cities to Reduce Inequalities Elias Nasr Naim Elias, Everton Bortolini, Jaqueline Alves Pisetta, Kauê de Moraes Vestena, Maurielle Felix da Silva, Nathan Damas, and Silvana Philippi Camboim Abstract This account of the experiences of the first YouthMappers chapter in Brazil aims to pres- ent the work done by Mapeadores Livres UFPR focusing on the themes of accessibility (SDG 10 Reduced Inequalities) and favela mapping (SDG 11 Sustainable Cities and Communities), bringing as a transversal dis- cussion of the quality of the geospatial data obtained collaboratively. Mapeadores Livres UFPR proposes to be a formative space in col- laborative mapping, and the theme of favela mapping reinforces our character as an exten- sion and research group and as a teaching group with the inclusion of this topic in the course developed. YouthMappers functions as an outreach project at the Universidade Federal do Paraná and is an interface between the uni- verse of social organizations and their humani- tarian projects and that of universities and their research topics. Keywords Inequalities · Digital invisibility · Accessibility · Methodology · OpenStreetMap · Favelas · Brazil 1 A Scenario of Digital Inequality In the context of urban and regional planning, geospatial data is a useful tool that can be used in several ways, particularly for conducting spatial analysis for evaluating and predicting expansion and growth. Unfortunately, in developing coun- E. N. N. Elias (*) · E. Bortolini · J. A. Pisetta · K. de Moraes Vestena · M. F. da Silva · N. Damas · S. P. Camboim Federal University of Paraná, Curitiba, Brazil e-mail: elias.naim@ufpr.br; evertonbortolini@ufpr.br; jaquelinepisetta@ufpr.br; kauevestena@ufpr.br; mfdsilva@mppr.mp.br; nathandamas@ufpr.br; silvanacamboim@ufpr.br © The Author(s) 2023 P. Solís, M. Zeballos (eds.), Open Mapping towards Sustainable Development Goals, Sustainable Development Goals Series, https://doi.org/10.1007/978-3-031-05182-1_16