Hello.
1.	Besides what was stated before by Muralito, two other things:
1) Contact the community to gauge interest in importing the data. You must follow the import guidelines before doing this type of import (Import/Guidelines - OpenStreetMap Wiki). That assumes this information follows the OpenStreetMap licensing.
2.	"OSM currently records points with their latitude and longitude. Elevations are only recorded for features where they are significant, such as peaks or surveyed points. Where this is done, the elevation above geoid (EGM96) is stored in the ele=* key. OpenStreetMap does not try to be a general elevation database, so do not tag elevation of nodes with no other tags, as well as for objects whose elevation is not an information of general interest." (Key:ele - OpenStreetMap Wiki).


I understand mountains and hills and some features like famous hotels and lakes, and towns in which the elevation is relevant, but 1XX nodes in Buenos Aires are pointless.
regards
