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Name:Pen Tre-derwen
Hill number:15495
Height:142m / 466ft
Parent (Ma):2136  Y Golfa
RHB Section:30E: Bala to Welshpool
County/UA:Powys (CoU)
Class:Tump (100-199m)
Grid ref:SJ 23851 19310
Summit feature:no feature: grass
Col:98m  SJ238189  
OS map sheet(s):(1:50k) 126
(1:25k) 240
Survey:Trimble GeoXH 6000
Comments:Height of hill is 142.0m
Change log:show changes for this hill entry
GPS data:show GPS entries for this hill

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No summit photo available
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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 10 users)ByDate of Ascent
Domed grass by a hedge near a small reservoir with good farmland views. Both sides of fence seems of similar height.Denise 02/02/2020
From Gelli Farm, gate E into pasture. Grassy rise on W side of fence very similar in height to fence line on E side of fence. Good if somewhat grey views.RichardM02/02/2020
Approached from Tredeweren Springs side, pleasant walk up RoW, no livestock other than sheep on one of the two possible summits. Nice view, can see the chimney in Oswestrytumpawumpa20/04/2019
Unticked. I guess I am just too scared of farmyard and horses. Tried from Gelli farm, couldn't find public row off bridlewaytumpawumpa07/04/2019
From SJ234198.summitsup23/12/2017
From ene, late Sun eve borrowed parking spot outside small office - not a recommended starting point. I thought pasture E of hedge although MP survey is W side. Last of a 3 day weekend in scenic PowysRHW27/03/2017
Up track to Gelli farm. Simple stroll over a couple of fields. Good views of Criggon quarry.stig_nest30/03/2016
Notable for being my 100th Welsh 100m Tump. Last top of a great day tumping and trimbling with Myrddyn Phillips.Alex C08/08/2015