Quaternary records around the world preserve critical insights into tectonic transformations, climate shifts, and human-environment dynamics. This INQUA 2027 session will spotlight international initiatives that leverage field stratigraphy, paleo-surface interpretation, and GIS-based integration to decode these archives. At the core of these, lie regional scale geological atlases, which systematically integrate geomorphological, sedimentological, and stratigraphic datasets across diverse physiographic settings. The session will explore topics such as basin architecture and evolution, paleoclimate reconstruction, hazard modeling, and inter-institutional data harmonization. Themes include morpho-stratigraphic mapping, lithofacies distribution, terrain classification, subsurface visualization, and integrative approaches linking hydrology and environmental management. With the growing emphasis on global geospatial standardization, the session invites proposals to support climate resilience, land-use planning, and international collaboration in Quaternary science.