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Name:Twyn y Gaer
Hill number:15629
Height:427m / 1401ft
Parent (Ma):2229  Waun Fach
RHB Section:32A: Llandovery to Monmouth
Nuttall/Wainwright area:Black Mountains
County/UA:Monmouthshire [Sir Fynwy] (CoU)
Catchment:Usk, Catchment Boundaries, Wye
Class:Tump (400-499m)
(Tu,4)
Grid ref:SO 29361 21963
Summit feature:cairn on grassy mound
Drop:81m
Col:346m  SO286235  
OS map sheet(s):(1:50k) 161
(1:25k) OL13S
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 38 users)ByDate of Ascent
Took the lane from the Queens Head to east of hill. Drove up as far as sensible on ice and snow. Parked at entrance to wide forestry track. Walked up lane and into field prematurely before open access land. Delightful summit. Super snowy views on a sunny afternoon.Campbell Singer02/02/2019
A lovely hill with a beautiful summit cairn. A longer walk than it looked from Bryn Arw! Solo.Dangerous Dave20/01/2018
Parking for a couple of cars at the road end. Along track and then on path to summit cairn. Good views.PeterD21/05/2017
Parked outside Cwmyoy village hall and walked up through Llanthony Wood. Noticed that it would have been possible to park on the track to the north of Gaer Farm.Wheelsy18/02/2017
Drove up the road as far as possible. Wide path through bracken to Iron-age hill fort.jonglew02/11/2016
As for Clivevilla. The cairn was a surprise. Nice hill.arranc22/10/2016
From car park to the east opposite the pub. There and back 2.74 miles. Surprisingly steep road but lovely top.clivevilla28/09/2016
County completionAdrian26/06/2016
Great views from hill fortRamblingpaul15/06/2015
From Cwmyoy, up through Llanthony wood to the cairn at the summitMariana Trench10/05/2015
2/6 A quick hop up from the road over one field through a mini forest and two fences to the topFergalh25/01/2015
Meandered up from Cym Coedcerrig via The Pant only to find cars parked at 298222. Good little hill fort and nice views.milimana24/01/2015
Summit is marked by a nice big cairn at SO29360 21965.JohnStoneham02/08/2014
From Queens Head pub Cwmyoy. Nice climb, nice hill, provided a different never seen before view of well known hills - worth a second visit.dicky16/12/2012
SO29350 21940Anton01/09/2012
Ascent from Queens Head Pub.Peapod2131/03/2012
A rare dry day for some local hills during an Easter week at a lovely cottage called Quizer. The following week once home was nice and warm but not this week.Chris Pearson02/04/2010
Nice grassy hill fort. The day after South Wales traverse with a very sore foot. From NE: road then pasture RHW29/03/2009
Had a hillbagging day after the big mountains were in cloud, tied up lose ends in our well walked Beacons: Twyn Y Gaer (Gaer), Crug Mawr, Tor-Y-Foel and Ysgyryd Fawr (Skirrid). Not all in one walk though!DanTrig21/02/2009
wonderful views open moorland with obvious summit.hodder05/06/2007
ngthack15/08/2018
geoffh1207/01/2018
Dusty26/12/2017
Lucky08/10/2017
maknipe08/10/2017
stevent080917/02/2017
iaindbrown09/08/2016
MM02/02/2016
Robert Kemp11/01/2015
peterstanding30/09/2014
geoffh1225/05/2013
tomandivy08/06/2011
Hetty11/04/2010
BrianMatthews21/10/2009
andrew.allum01/01/2000
TeasyChris01/02/1998
IainT24/01/1991
Rob Rees01/08/1980