Add marker to map:              help
Marker Notes X

To add your own marker to the map, click on the appropriate symbol below the map, then click again at the location required on the map (using the crosshairs).

Logged-in registered users only...
When you add a marker, a pop-up box should then appear on the map - fill in the elevation (if known) and a brief description of your marker, then click [save].

To view previously saved markers which fall within the bounds of the map, click the show link (you may need to repeat this if you zoom or pan away from the current position on the map).

Name:Mynydd Gellionnen
Hill number:15733
Height:268m / 879ft
Parent (Ma):2280  Mynydd y Betws
RHB Section:32B: Carmarthen to Vale of Neath
County/UA:Neath Port Talbot (CoU)
Class:Tump (200-299m)
Grid ref:SN 70457 04884
Summit feature:no feature
Col:209m  SN702052  
OS map sheet(s):(1:50k) 170
(1:25k) 165
GPS data:show GPS entries for this hill

Show Map
(Please be considerate with your usage of the OS map pages, as there are daily limits)

View on: Geograph  OS Maps  Streetmap  Magic  NLS  OSM

Full screen map
Switch to Bing Maps view

Resize map: portrait / landscape / reset

Map Help, This page uses the Ordnance Survey OpenSpace API
which does not include Explorer (1:25000 scale) mapping.

Show/hide GPS File for mountains/markers shown

Show/hide GPX File for mountains shown

No summit photo available
Hill summit
No portrait photo available
Hill portrait

To contribute a summit or portrait photo for a hill
please contact the hillsummits website

N.B. Some hill summits are on private property or on land where there is no public right of way.  Permission should be sought from the landowner where access to a hill summit is through private land.
Please report via the contact page any logs you see below which describe or encourage acts of trespass, and mention the hill number and hill name.

Logged Descriptions  (logged by 9 users)ByDate of Ascent
3 Tump 3 and half hr circular walk with L from Lidl,in valley bottom, before doing our week's shopping. Bogs all dry ( a rarity in Wales in L's book) on easy walk from south but dense rhododendrons on north descent blocked row so curved back around on a path through rhoddy tunnel ( old mine track?) then steep lane down and up to hill opposite - our next TumpChris Pearson04/08/2018
From near the chapel after having done Craig yr Allt. Followed tracks to HP. Good views on a clear day.PeterD10/08/2017
From minor road to S. Ground boggy approaching summit.jonglew14/02/2017
From sw, path to grassy summit. My final Neath Port Talbot tump. Then on to Craig yr AlltRHW14/08/2016
Taking photo of cairn and bench marking in area.Dusty27/07/2013
Blue monkey01/06/2012