Topo002d991.7z -

: Certain third-party mirrors use these codes to catalog regional terrain data for GPS devices.

: The Spanish National Geographic Institute often uses similar coding for their 1:25,000 or 1:50,000 scale topographic series. TOPO002d991.7z

If you are looking for the specific research paper that utilizes this file, it is often documented in: : Certain third-party mirrors use these codes to

: It may be a specific tile or subset of a larger geographic study cited in research papers involving GIS (Geographic Information Systems) or environmental modeling. How to Find the Related Paper 000 or 1:50