Wales · Bannau Brycheiniog National Park

Waun Fach

HewittNuttallMarilynHuMPSimm

3 classifications here — Marilyn, HuMP and Simm — belong to lists OpenFell holds only part of, so they have no list page. See how far the coverage goes.

Waun Fach, 811 m, Powys
Waun Fach, 811 m, Powys. Photo by Gabby77 (talk), Public domain · Wikimedia Commons
Height
811 m · 2,661 ft
Grid reference
SO 21552 29989
Coordinates
51.96279, -3.14320
County / area
Powys
OS Landranger
161
OS Explorer
OL13N
Summit feature
no feature
Key col
SO 1120 2604 (189.1 m)

About Waun Fach

At 811 metres, Waun Fach is the highest mountain in the Black Mountains of south-eastern Wales, and one of three Marilyns over 600 m in the range alongside Black Mountain and Mynydd Troed. South of Snowdonia it is the third highest in Britain, behind Pen y Fan and neighbouring Corn Du.

The summit is rounded to the point of being hard to pick out, and the ridge tops nearby, Pen Trumau and Pen y Gadair Fawr, are far more distinct despite being lower. The mountain stands at the head of the Grwyne Fechan valley, west of and above the Grwyne Fawr reservoir, with Rhos Fawr and the Radnor Forest in view to the north.

Background written from facts in the Wikipedia article on Waun Fach (CC BY-SA 4.0). Heights, prominence and grid references come from the Database of British & Irish Hills, not from Wikipedia.

Access rights here

Conditional Right to roam: Right to roam only on mapped CRoW open access land.

Permission needed Wild camping: Permission needed everywhere.

General position for Wales — local byelaws, seasonal restrictions and closures can override it. Full details: access rights in Wales ·check another location.

Daylight at this summit today

Sunrise
—
Sunset
—
Daylight
—
Civil twilight ends
—

Computed astronomically for 51.963, -3.143. Plan your finish with the daylight safety planner.

Summit weather live

Loading forecast for the summit (811 m)…

Forecast adjusted to summit altitude. Weather data from MET Norway (CC BY 4.0).

Finding the summit

Surveyor's note

ground 20m NE of OS bolt in concrete block.

The recorded summit point is no feature. That distinction matters on broad or flat tops, where the obvious cairn is not always the true high point.

Survey method
Abney level
Record revised
23-Dec-16
Drop measured from
SO 1120 2604 · 189.1 m

Survey notes are field observations recorded in the Database of British & Irish Hills (v18.3, CC BY 4.0) by the hill-surveying community.

Long-distance paths past this hill

One waymarked long-distance route runs within 2.5 km of the summit — useful if you are linking this hill into a longer walk, or want a made path for the approach.

RouteTotal lengthFrom summit
Cambrian Way483 kmover the top

Route lines © OpenStreetMap contributors (ODbL); distance from the summit computed by OpenFell.

Get food nearby

3 places to eat or drink within 10 km of the summit, rated under the Food Hygiene Rating Scheme (Scotland runs its own Food Hygiene Information Scheme, a pass/fail equivalent).

Rated places to eat within 10 km of Waun Fach
PlaceTypeRatingDistance
Piccadilly CaterersRestaurant/Cafe/Canteen5 out of 57 km · NW
Sun City TakeawayTakeaway/sandwich shop3 out of 57.1 km · NW
Tower HotelHotel/bed & breakfast/guest house5 out of 57.1 km · NW

Classifications and ratings are the local authority's own and can be coarse — this is a lead, not a guarantee of opening hours or that food is served to non-residents. Follow a name through to the official rating page to check, and confirm before you rely on it.

Food hygiene data from the Food Standards Agency and Food Standards Scotland (Open Government Licence v3.0). Distances and directions computed by OpenFell from the summit.

The Waun Fach group

9 other listed summits sit in the same prominence group, with Waun Fach as the independent hill at its head.

Listed summits in the Waun Fach prominence group
SummitHeightDrop
Pen y Gadair Fawr800 m47 m
Pen Allt-mawr720 m104 m
Rhos Dirion713 m22 m
Pen Cerrig-calch701 m53 m
Twmpa690 m79 m
Chwarel y Fan679 m72 m
Mynydd Llysiau663 m42 m
Pen Twyn Mawr658 m18 m
Pen Twyn Glas646 m20 m

Grouping is by prominence alone: a summit belongs to the nearest higher Marilyn it connects to without a deeper intervening col. Over a large massif that can gather hills no one would walk in a single day, and which few would describe as parts of the same mountain — it is a measure of independence, not a suggested route.

Nearest listed peaks

PeakHeightDistance
Pen y Gadair Fawr800 m1.9 km
Mynydd Llysiau663 m2.2 km
Rhos Dirion713.4 m3.4 km
Pen Twyn Mawr658 m4.2 km
Chwarel y Fan679 m4.3 km
Pen Twyn Glas646 m4.3 km