My photos have both geotags and location information (i.e. city, county, state, etc.) stored in EXIF on the files.

 

When files are imported, this descriptive information generally comes across and is stored in the 'geotag' fields in WPG. So far so good.

 

However it seems that over time, WPG takes it upon itself to re-interpret the EXIF geotags for some (but not all) photos and to change the descriptive details appearing in WPG to something different to what is held in EXIF. This would be fine, except that it does not appear to do so in a consistent way. One would expect it to follow consistent ISO standards for the hierarchy of administrative and location levels within each jurisdiction, i.e. 'country', 'state/province', 'county', 'city', 'location', etc. when mapping geotags to location details.

 

The apparently random incidence of this means that photos are not then grouped together correctly when using the 'Geotag' view.

 

Where, exactly, does WPG get its location mapping data from, and what if any standards does this conform to? And is there any way to inhibit it from amending these details unbidden?