The article presents a pilot study using Public Participation Geographic Information Systems (PPGIS) to comprehensively diagnose the post-mining area of Wałbrzych (Poland) in the aftermath of sudden coal mine closures in the 1990s. Addressing research gaps in social participation and post-mining area assessment, the study provides insights into the complexities of just transition. By combining participatory methodologies, statistical and spatial analysis, the research engages local stakeholders to include the community perspectives in the assessment processes. The study unveils the intricate interplay between social dynamics, environmental concerns, and urban changes following mine closures. The findings illustrate the multifaceted impacts of sudden mine closure, including economic collapse and social crisis. The pilot study contributes to the future holistic approach to diagnosing the post-mining area preceding the processes of just transition and revitalization.