Garth Mountain

Trig Point · TP3328

The trig point on Garth Mountain sits on a Bronze Age burial mound
at 307 metres above the River Taff, and the hill is one of the
easiest day walks from Cardiff. On a clear day you can see
Weston-super-Mare across the Bristol Channel to the south, Pen y
Fan in the Brecon Beacons to the north, and the city itself laid
out below.

The standard approach follows the Taff Trail north from Cardiff and
turns off uphill onto minor footpaths, gaining most of the height
through woodland before the crags. A circular of around four miles
returns along the lower slopes, with views that swing between city,
river and open hillside. The summit holds a nipple-shaped cairn
and the trig, and on a quiet evening you may have the top to
yourself. The hill gained a second claim to fame in 1995, when the
writer Christopher Monger, who grew up in Taff's Well nearby, used
it as the inspiration for the fictional Ffynnon Garw in The
Englishman Who Went up a Hill but Came down a Mountain. Walkers
still climb up to see the spot.

About Garth Mountain

ReferenceTP3328
Grid referenceSH792688
Height in metres234 metres
Height in feet767 feet
Latitude53.20289957
Longitude-3.808919786
CountryWales
Pillar typePillar
ConditionGood
Historic use3rd order
Current usenone
Mountain Pen-Or
Trigpointing UKView record

Best time to visit Garth Mountain

Best months to visit: May, Jun, Jul

These months tend to be warmer and drier than the rest of the year.

Hottest months: Jun, Jul, Aug

Coldest months: Jan, Feb, Mar

Rainiest months: Sep, Oct, Dec

JanFebMarAprMayJunJulAugSepOctNovDec
Day temperature6 °C7 °C9 °C11 °C15 °C17 °C18 °C18 °C16 °C13 °C9 °C7 °C
Night temperature1 °C3 °C3 °C4 °C8 °C10 °C11 °C11 °C10 °C8 °C5 °C3 °C
Rain128 mm117 mm117 mm80 mm76 mm84 mm80 mm91 mm135 mm138 mm129 mm163 mm

Based on Mwdwl-eithin, 3.7 km away. Historical seasonal averages. Weather data by Open-Meteo.

Walk videos

Route notes, timings, and viewpoints from walking videos.

Garth Hill: Getting High Above Cardiff | The Miners

The Walking Kev

9 notesfrom YouTube

The summit of Garth Mountain is 307 m, about 1,007 ft above sea level. Since the walk starts low near the River Taff, most of that height is gained on the way up; the video notes climbing through woodland early, with about 650 ft of ascent from the parking spot.

Show 9 notes
  • Observation

    The summit of Garth Mountain is 307 m, about 1,007 ft above sea level. Since the walk starts low near the River Taff, most of that height is gained on the way up; the video notes climbing through woodland early, with about 650 ft of ascent from the parking spot.

    307 m doesn't sound a lot.
    Watch at 0:47
  • Observation

    From below, the top is recognisable by a nipple-shaped cairn and a trig point. The summit is an ancient burial mound.

    Watch at 1:15
  • Route

    One way up the hill approaches from the east along its side on minor footpaths. Over tree stumps and rocks the focus is on footing, until the route breaks out onto a grassy fern path where the views open up to the east.

    Watch at 2:32
  • Route

    It is possible to walk to the hill from Cardiff itself, heading up the Taff Trail for a bit and then turning off uphill, without much trouble.

    you can also walk from Cardiff without too much trouble heading up the Taff Trail
    Watch at 4:56
  • Observation

    Crags at the hill's edge hold a few pleasant spots to camp. The walker planned a future overnight camp there.

    a couple of really nice spots over here to camp as well
    Watch at 5:15
  • Observation

    The top gives 360-degree views: the Beacons directly north, and the Bristol Channel, Cardiff and England away to the south. The video also praises sunrise and sunset views over Cardiff.

    One of those hills where you can clearly see both 360° views.
    Watch at 8:20
  • Observation

    The hill is described as littered with footpaths and places to park, is well walked from many directions, and can be reached on foot from Cardiff. On a quiet weekday evening it may be almost deserted.

    It's littered with footpaths, littered with places to park around it.
    Watch at 8:53
  • Route

    The descent ran as a circular route: heading south towards Cardiff, skirting the base of the hill, and returning through sheltered woodland to the River Taff. The completed walk was about 4 miles with roughly 1,000 ft of descent.

    So 4 miles of walking, 1,000 ft of descent.
    Watch at 9:04
  • Observation

    Compared with the higher Beacons, the walk offers more varied terrain: woodland, city views, fields, and pockets that feel wild and remote, with sheltered corners out of the wind.

    Watch at 10:58

Garth Mountain Walk Near Cardiff

roamingspices

2 notesfrom YouTube

The walk took around 2 hours 40 minutes of moving time and was gentle and pleasant. The video maker paused their tracking during a brief pub stop on the way back.

Show 2 notes
  • Route

    The walk took around 2 hours 40 minutes of moving time and was gentle and pleasant. The video maker paused their tracking during a brief pub stop on the way back.

    It was a very, very pleasant, very gentle walk, lasted for two hours 40 minutes of actual moving time.
    Watch at 1:43
  • Observation

    The walk is not far from Cardiff city centre, and the video suggests it could be done without a long car drive from the city.

    Watch at 2:04

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