The digitalization of mountain infrastructure and the adoption of open-source and open-data methodologies play a key role in supporting local communities engaged in the collection and management of data related to hiking trails, mountain huts, and climbing areas. The European Mountain Association (EUMA) database serves as a case study, demonstrating how a federated architecture enables the harmonization of data from multiple contributors into a unified model. This approach not only facilitates data collection by local actors but also allows for the generation of valuable analytics supporting trail maintenance, infrastructure planning, and decision-making processes at local, regional, and European levels. Digital infrastructure is a cornerstone of sustainable mountain tourism and an effective response to climate change. By integrating data from different sources, the EUMA database enables adaptive management strategies, helping mountain regions anticipate and mitigate the effects of environmental changes on trails, huts, and climbing areas. The ability to generate real-time insights from aggregated datasets ensures that mountain tourism adapts to emerging challenges while preserving accessibility and safety for users. This presentation will showcase key statistics and findings derived from the collected data, highlighting trends in trail usage, maintenance requirements, and the impact of climate change on mountain access and infrastructure. By providing an open and collaborative platform for data sharing, we aim to empower local communities, public authorities, and policymakers with actionable insights that foster resilient and sustainable mountain tourism.