The SLOPE project aims to optimize forest production through a 3D virtual forest system to support harvesting operations in mountainous areas. The system will integrate data from forest surveys, digital terrain and forest models, and real-time sensor data to create a digital model of the forest. This model will then support various harvesting planning and monitoring tasks, such as cableway deployment planning, working area setup, and tree felling monitoring. The system is being developed as a web-based application to allow easy access and integration with other services. It will track the entire process from tree tagging to sawmill processing.