Correcting details on Tal y Fan

Do we show Tal y Fan in the right place?
–> Click to reveal the map <–

OLD DATA CORRECTED DATA
(fill only the boxes that need correction,
leave all others empty)
Tal y Fan
Lat: 53.235 Lat:
Lon: 356.094 Lon:
Cambrian Mountains
Snowdonia
United Kingdom
610 m m
GMT 0.0h GMT + h (use "-" for negative timezones, as in the US)