GIS offers archaeologists an exciting tool to analyze and interpret spatial and temporal archaeological data. Main applications include cultural resource management, landscape analysis, and site catchment analysis. GIS allows visualization of 3D relationships, time series analysis, and predictive modeling. It provides advantages like integrating diverse data types, interpreting landscapes at various scales, and analyzing issues like site distributions. However, GIS also has limitations like being dependent on original data quality and having a bias towards spatial over other types of analysis. Future uses may include more 3D modeling and accounting for seasonal landscape changes.