Looking at both the details tab of the properties of the files (in Windows Explorer) and using a separate Exif Viewer addon for Firefox gives me the following info:
# GPS Latitude Reference = N
# GPS Latitude = 43/x,xxxx/xxx,x/x [degrees, minutes, seconds] ===> 43° xx.xx′
# GPS Longitude Reference = W
# GPS Longitude = 172/x,xxxx/xxx,x/x [degrees, minutes, seconds] ===> 172° xx.xx′ (numbers changed to protect the innocent)
The coordinates listed by the free app Geohash are correct though (showing -43°)
Obviuosly GoogleMaps app gets it right too, so i suspect it is just the photos app.