Wales

Mynydd Tynewydd · Mynydd Ystradffernol

Height
518 m · 1,699 ft
Grid reference
SN 93684 00915
Coordinates
51.69684, -3.53973
County / area
Rhondda Cynon Taff
OS Landranger
170
OS Explorer
166W
Summit feature
grassy hump in trees
Key col
SN929021 (486 m)

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
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Sunset
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Daylight
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Civil twilight ends
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Computed astronomically for 51.697, -3.540. Plan your finish with the daylight safety planner.

Summit weather live

Loading forecast for the summit (518 m)…

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

Finding the summit

Surveyor's note

this ground is near OS spot height; ground 100m E at SN 93793 00912 may be as high.

The recorded summit point is grassy hump in trees. That distinction matters on broad or flat tops, where the obvious cairn is not always the true high point.

Record revised
10-Dec-12
Drop measured from
SN929021 · 486 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.

Reaching Mynydd Tynewydd by train

3 National Rail stations sit within 8 km of the summit — close enough to make a car-free day of it. Distances are straight lines, not walking routes.

StationFrom summitSummit lies
Treherbert2.7 kmN of the station
Ynyswen3.8 kmN of the station
Treorchy5 kmNW of the station

Each station page lists every hill in its reach, long-distance paths from the door and a live-times link — see all stations with hills in reach. Station positions from NaPTAN (OGL v3.0).

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 Mynydd Tynewydd
PlaceTypeRatingDistance
Blaenrhondda Social ClubPub/bar/nightclub5 out of 51.4 km · SW
Tynewydd HotelPub/bar/nightclub4 out of 52 km · S
Treherbert RFCPub/bar/nightclub5 out of 52.1 km · S

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.

Which hill this one belongs to

Mynydd Tynewydd is not counted as an independent hill in its own right. In prominence terms it belongs to Craig y Llyn (600 m) — the nearest Marilyn you can reach from this summit without first dropping below its key col, 486 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
Hirwaun Common515 m2.7 km
Craig y Llyn600 m3.7 km
Mynydd Blaengwynfi528 m4.7 km
Twyn Crugyrafan559 m5.7 km
Mynydd Ynyscorrwg502 m5.7 km
Werfa568 m6.6 km