Vector files in dgn format from which the printed series of the National Topographic Map 1:25,000 is obtained. The download unit is a zip file for each MTN25 sheet, which in turn contains a dgn file with all the map information (except ground occupation) and a dgn file with extension renamed a.cul with the land occupation enclosures. The geodetic reference systems are ED50 or ETRS89 according to sheet date (in the Canary Islands REGCAN95, compatible with ETRS89). UTM projection in the corresponding spindle.
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