This dataset presents a comprehensive inventory of glacial lakes in the Caucasus region, compiled from remote sensing data acquired in 2025. The Caucasus is a hotspot of glacier retreat and associated glacial lake development, where the formation and expansion of glacial lakes pose increasing risks of Glacial Lake Outburst Floods (GLOFs) to downstream communities and infrastructure.All lakes were mapped using satellite imagery (Sentinel-2) acquired during the 2025 ablation season. Lake boundaries were delineated manually to ensure accuracy, particularly for complex lake geometries and ice-contacting margins.

The dataset is intended to support research on glacier-lake interactions, GLOF hazard assessment, and water resource management in the Caucasus. It provides a baseline for monitoring future lake changes and contributes to regional disaster risk reduction efforts.