Landscape patterns were determined for three dif- ferent areas having oak populations in the Popayan municipality (Clarete, Rejoya and Pisoje). Two Landsat images from different years and polygons with areas equal or greater than 1.5 hectares were used for land use classiication. Patch Analysis software was used in order to determine quanti- tative variables. Structure description included: number of patches, mean patch size, mean patch index, mean patch fractal dimension and mean perimeter-area ratio. Dispersion and fragmenta- tion were evaluated with the three indexes: Mean