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Name:Sychnentydd
Hill number:3512
Height:508m / 1667ft
Parent (Ma):2205  Pen y Garn
RHB Section:31C: South-West Wales
County/UA:Powys (CoU)
Catchment:Wye
Class:Unclassified
(Un)
Grid ref:SN 91002 72470
Summit feature:no feature 5m E of boundary stone
Drop:13m
Col:495m  SN910728  
OS map sheet(s):(1:50k) 136 147
(1:25k) 200W
Survey:Abney level
Comments:Dewey replaced by hill 7883 Cerrig Llwydion 600m N in Sept 2012
Change log:show changes for this hill entry
GPS data:show GPS entries for this hill

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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 46 users)ByDate of Ascent
Elan Valley Deweys. Esgair y Llwyn, Pen Lan-fawr, Cerrig Llwydion, Sychnentydd, Moelfryn. Camped by top of MoelfrynRobertP27/07/2019
Parked at North end of reservoir. Directly up to Sychnentydd. Cerrig Llwydion. Along ridge to Pen Lanfawr. Esgair y Llwyn. Descended south east to right of way. Descent paths much of the way.ijpowell25/05/2018
4/5 Four of five (Esgair Yllwyn/Pen Lan-fawr/Cerrig llwydion/Sychnentydd/Moelfrynn)Fergalh18/09/2016
Cerrig Llwydion, Sychnentydd, Esgair y Llwyn and Pen Lan-Fawr. About 2 1/2 hours/ Parked at FB and walked south to Pen yr Ochr.clivevilla18/06/2015
From Elan Valley Mountain Road (SN 89904 72024) - Cerrig Llwydion - Sychnentydd.david23020129/12/2014
As part of a circular walk of Esgair y Llwyn, Pen Lan-fawr, Cerrig Llwydion, Sychnentydd, Moelfryn, Penrhiw-wen, Esgair Dderw, Esgair Penygarreg and Esgair Perfedd. No difficulties in parking, access or navigation.JohnStoneham07/09/2014
8 am start on a long hot day. From Pont ar Elan via sheepfold at 912 715 and straight up hill over Moel Geofron. No nasties, glad it was dry.dicky15/06/2014
Lucky to find a long enough spell between the storms to get this along with the others across the valley.Martin R09/02/2014
Climbed on the way to Cerrig Llwydion as an insurance policy. Cerrig is a much better summit.Man of Kernow102/02/2014
Part of a 3 day solo walk around the elan valley ticking of some dewey topssteviet05/05/2012
Start ~ 916714. From Moelfryn. With Wombourne & Ron. This hill is no longer a Dewey.steve hudson21/01/2011
From mountain road walked east to Moelfryn then west to Sychnentydd over grassy/heathery ground. Summit is marked by a concrete boundary post. Descended SE back to car. With SH/RO.wombourne21/01/2011
Galltywenallt24/02/2007
Long whale back hill following short steep ascent from "aber mountain road". Elan Valley boundary stone marks the summit areaRhayader_wander04/02/2007
petey10/04/2005
Rhayader Dewey bagging, walk 8/8; Moelfryn and Sychnentydd from road to S @ 913715. RHW28/02/1998
Rob Rees25/07/2019
TK02/01/2019
Rob Pen y Garn29/04/2015
boxblade07/03/2015
andrew brown22/06/2014
DARRENG22/06/2014
Chris Peart26/02/2014
iaindbrown25/04/2013
MM11/11/2012
KatieJayne10/06/2012
salen15/04/2012
wychwood05/01/2012
Deedubr21/07/2011
MM24/05/2011
johnbarnard2515/11/2010
Andy West03/08/2010
bogdodger07/03/2010
GeoffC20/03/2009
veganvixen15/03/2009
Halfdecent15/03/2009
Anton17/02/2009
carole engel16/08/2008
AndyS20/01/2008
stevent080931/03/2007
powyswalker07/10/2006
iaindbrown22/03/2006
Moorponder29/07/2004
David Purchase17/12/2003
mountaineagle06/02/1998
Ianto&Sue27/04/1997