A ski hill is a designated winter recreation facility featuring one or more groomed or natural slopes used for downhill skiing, snowboarding, and related snow sports. From a GIS perspective, ski hills represent complex spatial environments requiring detailed terrain analysis, multi-layered geospatial data integration, and dynamic mapping capabilities. GIS technology is applied across several operational domains, including digital elevation model (DEM) analysis to assess slope gradient, aspect, and curvature for trail design and avalanche risk modeling. High-resolution LiDAR data supports precise topographic mapping, enabling planners to optimize lift corridor placement, drainage infrastructure, and snowmaking system layouts. Geospatial data layers such as land ownership boundaries, vegetation cover, hydrological networks, and soil classification are spatially analyzed to support environmental impact assessments and regulatory compliance. Operational GIS applications include real-time snow depth monitoring, trail condition management, and visitor flow analysis using GPS-tracked assets. The practical benefits include improved safety planning, more efficient resort infrastructure development, enhanced environmental stewardship, and data-driven decision-making throughout the full lifecycle of ski hill design, management, and expansion.