GroundTruth is a dynamic online map of changing topographic structures (roads, checkpoints, barriers, and settlements) and human narratives in the Occupied Palestinian Territory. This community-driven map is populated with multiple data layers collected by human-rights organizations and a network of informed inhabitants. This community and crisis mapping effort aims to unite disparate datasets and provide a more comprehensive picture of changing restrictions and events. We believe this �ground truth,� correlating spatial mapping with daily human experience, is crucial to understanding the changing nature of the occupation and enabling cooperative action by organizations and individuals in the region.