There was an Englishman who went up a hill and came down a mountain. Can you name that mountain?

Question

Here's a little clue, It's in Wales.

Answer 1

The real name of the mountain is Garth Hill or Garth Mountain located near the Welsh village Ffynnon Taf.  In the 1995 movie "The Englishman Who Went Up a Hill But Came Down a Mountain" starring Hugh Grant, however, this mountain had the fictional name of "Ffynnon Garw."  The mountain is located approximately 6 miles from Cardiff.

Answer 2

Cardiff. That's in Wales.

Answer 3

Ffynnon Garw

Answer 4

it is Taff’s Well  

Answer 5

Garth Mountain.