1st Edition of the National Topographic Map 1:50,000 and later

Raster files corresponding to all editions of each MTN50 sheet, from the scanning of the paper maps preserved by the IGN Cartoteca. The download drive is a zip file for each MTN50 sheet, which includes three file types: JPG without georeference with 250 dpi resolution; georeferenced ECW with resolution 400 dpi (in geographic coordinates longitude and latitude, without cartographic projection) and prj containing information on georeferencing. The structure of the name of each file is as follows: MTN50-No Leaf-NameMale-Year-ay.jpg. The last three letters of the filename respond to the following code: c.- Grid; e.- Special edition; r.- Reprint; s.- Shading; g.- Map of war; N.- There is no attribute. For example: CNS corresponds to a map that has grid, is not special edition and is shaded.