Name:Clawdd Mawr
Hill number:7564
Height:504.6m / 1656ft
Parent (Ma):2131  Rhialgwm
SMC/RHB Section:30E: Bala to Welshpool
Nuttall/Wainwright area:The Berwyns
Topographical area:WN10 Aran-idris
Grid ref:SJ 06255 21468
Summit feature:no feature
Col:475.9m  SJ 0591 2153  
OS map sheet(s):(1:50k) 125
(1:25k) 239
Survey:Leica NA730/Leica GS15
Survey of Clawdd Mawr.pdf
Change log:show changes for this hill entry
GPS data:show GPS entries for this hill


Show Map

View on: Geograph  Magic  NLS

Show/hide GPS File for mountains/markers shown

Show/hide GPX File for mountains shown

Hill summit photo
(where available)
Hill portrait photo
(where available)

Click on a photo link to view photo on the hillsummits website

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.  Please quote the hill number and hill name.

Logged Descriptions  (logged by 25 users)ByDate of Ascent
On way up Rhialgwm, ascended to east of stream, then went up by fence. Into newish plantation to HP.PeterD02/04/2023
With Rhialgwm.Peterb09/02/2023
Nice walk along the track from 05040 20357 but then the fun started. I spotted a vague track on the left and it was indeed well blocked by fallen trees, brambles and other obstacles but I eventually got through. I went down further east which was easier but still large portions of wet, head high bracken and uneven under foot so I fell twice. I won't be going back.clivevilla26/08/2022
Having had an awful deep bracken, fallen trees, and heather experience on Rhialgwm from the SW, I worked my way across to Clawdd Mawr, from where an easy route down grassy fields (some not access land) brought me back to the forest road without further incident. Just 6km with 300m ascent taking a long and hard 2 hours!silveracorn_alan06/08/2022
Came over here after Rhialgwm. The hill fort walls are impressive. Summit in felled area over barbed wire fence. Easy track back to the van parked to the north. Solo.Dangerous Dave26/05/2022
Detour en route to Rhialgwm. Deep defensive hill fort ditch. HP in cleared and replanted area.Nick Canute05/03/2022
From end of rd s of Rhialgwm. Rough last 300m of road. Stay on hard ground when parking. RoW up between Rhialgwm & Clawdd Mawr blocked by fallen trees Ascended brackeny slopes e of stream. 2/3 way up dropped back down to stream to get round new bw fence. KeithByTheC29/12/2021
From E. Good parking at road end 095 230. Top has been replanted with spruce - will be impassable in a few years. With RhialgwmPeteN01/08/2019
from Rhialgwm, forestry has been felled so top is accessible.Rob5001/07/2018
8/10 (Allt y Main/Galt y Goedhwch/Allt y Gader/Moel y Fronllwyd/Pen y Berth/Domen-Gastell Hill/Das Eithen/Clawd Mawr/Rhialgwm/Cilhaul)Fergalh12/08/2017
Morning stroll with Minnie, parked at track jn 064 210, up track to jn with path up Llwybr Heulen to fenceline then up to Clawdd Mawr,top? in trees difficult to find,continued round fenceline to high point then heather bash to Rhialgwm top/trig, great views, down via vague track/sheep path then path back to jn. sunny & warm.apricorum13/04/2016
From carpark on B4391 at Penybontfawr at SJ 08825 24544. South to Bwlch Greolen then along the ridge to the top.Alan Moore06/01/2016
Parked SJ052204,track then path to col, fence line to top. 1st top 2mtrs inside plantation on tree mound so may not count as it is man made SJ0627121477 506m. 2nd top grassy hill to South SJ0627921463 504m . 3rd top next to fence SJ0630021418 504m.Anton01/01/2013
from near penygarnedd, along forestry tracks initially then up open pastures to ancient earthworks. true summit is engulfed in thick forestry.. not much fun. the route to Rhialgwm will be very dense bracken in summer months..okay today though..stig_nest19/02/2012
decent earthworks, summit just into dense sitka. fp from S, then cross stream, descend pasture direct to car RHW01/04/2006
Mark Sims10/03/2017
Steve Q23/01/2009