This study is based on the assessment of the state of the Toumiet-Sud forest, located in the Sidi Bel Abbès province, which was devastated by a major fire in 2012. It highlights the importance of using remote sensing tools and integrating aerospace and cartographic data into a geographic information system (GIS). The analysis of the vegetation index derived from the three processed images from 2010, 2012, and 2020 showed a variation in the radiometry of the fire-affected areas. The results, verified through field investigations, revealed heterogeneous regeneration throughout the entire study area, with a notable recovery of the Algerian fir (Tetraclinis articulata).