Big data is changing the scale and scope of the questions ecologists are asking, however, data integration efforts are complex, and there is much to learn about best practices. On rangelands, new data sources and novel integrations of existing data are expanding our knowledge and improving our ability to make big decisions about land management. Advances in data integration and cyberinfrastructure techniques enable understanding of a diversity of interactions at multiple scales: across trophic levels, between species, in human-wildlife interaction, herbivore predator-prey dynamics, and vegetation patterns of structure and function of ecosystems. However, different technologies create a wide array of big data types, and leveraging such varieties of data and data integration approaches to address changes across scales, and spanning multi-stakeholder concerns while remaining locally relevant, requires active collaboration between ecologists and stakeholders. This session brings together a diverse group of ecologists and land managers to highlight the value of collaborative data-driven management approaches in rangeland ecosystems, with principles that span spatial, trophic, temporal, and organizational scales.