This data category requires a high level national map. To satisfy this category, the following minimum criteria must be met:
- Scale of 1:250,000 (1 cm = 2.5km).
- Markings of national roads
- National borders
- Marking of streams, rivers, lakes, mountains.
- Updated at least once a year.
There is unclear which agency responsible for producing national map. The Royal Thai Survey Department (กรมแผนที่ทหาร) under the Royal Thai Army is the one that provide most sophisticated map, but all of their maps are not free to access.
I changed the entries due to the fact that there is a government agency that is responsible for the data, but it is not accessible to the public.
- No data
|Date the data became available||Unknown|
|Format of data||Unknown|
|Last modified||Thu Oct 30 2014 02:38:06 GMT+0000 (UTC)|