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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] |
| 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 |
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 57 users, only the latest 50 shown - Show all) | By | Date of Ascent |
| Graig-Hatterrall Hill-Llanthony-Bal Mawr-Twyn y Gaer from Queen's Head CP. 22.8km. | TK | 11/03/2024 |
| rickeeling | 29/01/2024 | |
| Martin R | 29/11/2023 | |
| I parked at the phone box at the little pull in to the southwest. Steep run up the lane to Ferm Newydd. I carried on for a bit and then headed South East up to Twyn y Gaer. Visited cairn and mound nearby. It was very windy. Decided to run north along the ridge and ended up going all the way to Chwarel y Fan. It was extremely windy on this hill at points it was difficult to stand let alone run. Returned the same way then split off to Upper House and down to small church and the car. Time taken 2 hours 30 minutes for 12.74 miles and 1989 feet of ascent. No other Walker but did see 2 motorcycles. | isabelle | 19/11/2023 |
| 12 mile run loop with Pauline from Llanthony Abbey .. Hatterral, Graig, Twyn y Gaer .. tidy :-) | milejunkie | 07/05/2023 |
| TedCymru | 07/07/2022 | |
| Went up Bryn Awr first of all then across the valley to this one in search of a geocache. Nice top and smashing views. | Father Ted | 19/06/2022 |
| Alex C | 14/02/2022 | |
| Cairn on ancient earthworks in clear sunny but cold weather. From Road to north; path cut through bracken. There is parking at the road end and in a layby half way up the road which we did not realise and paid £2 to park at the mapped 'Walkers'' carpark owned by Queen's Head pub. Onto Graig. | Denise | 25/11/2021 |
| A great little hill with easy access on excellent path and with fine views. Hill fort, twin summit mounds of very similar height. | RichardM | 25/11/2021 |
| Having walked the Bryn Arw ridge we crossed the Cwm Road and climbed up via Upper Gaer Farm to the hillfort. Descended via ancient tracks to The Pant and the nature reserve. | Rob Rees | 03/04/2021 |
| Rob Rees | 06/11/2020 | |
| Parked at the Queens Head Inn and completed a 5.5km walk to the summit & back. Enjoyable outing with my family :-) | Gerry the Ranger | 30/08/2020 |
| Followed lane up from E, took path L from gate, loops round to top. Parking available near top of road but limited. Larger car park partway up better option | amarillo-oro-como | 22/03/2020 |
| 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 Singer | 02/02/2019 |
| ngthack | 15/08/2018 | |
| A lovely hill with a beautiful summit cairn. A longer walk than it looked from Bryn Arw! Solo. | Dangerous Dave | 20/01/2018 |
| geoffh12 | 07/01/2018 | |
| Dusty | 26/12/2017 | |
| Lucky | 08/10/2017 | |
| maknipe | 08/10/2017 | |
| Parking for a couple of cars at the road end. Along track and then on path to summit cairn. Good views. | PeterD | 21/05/2017 |
| 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. | Wheelsy | 18/02/2017 |
| stevent0809 | 17/02/2017 | |
| Drove up the road as far as possible. Wide path through bracken to Iron-age hill fort. | jonglew | 02/11/2016 |
| As for Clivevilla. The cairn was a surprise. Nice hill. | arranc | 22/10/2016 |
| From car park to the east opposite the pub. There and back 2.74 miles. Surprisingly steep road but lovely top. | clivevilla | 28/09/2016 |
| iaindbrown | 09/08/2016 | |
| County completion | Adrian | 26/06/2016 |
| Nirobi99 | 31/03/2016 | |
| MM | 02/02/2016 | |
| Great views from hill fort | Ramblingpaul | 15/06/2015 |
| From Cwmyoy, up through Llanthony wood to the cairn at the summit | Mariana Trench | 10/05/2015 |
| 2/6 A quick hop up from the road over one field through a mini forest and two fences to the top | Fergalh | 25/01/2015 |
| Meandered up from Cym Coedcerrig via The Pant only to find cars parked at 298222. Good little hill fort and nice views. | milimana | 24/01/2015 |
| TREBORK | 11/01/2015 | |
| peterstanding | 30/09/2014 | |
| Summit is marked by a nice big cairn at SO29360 21965. | JohnStoneham | 02/08/2014 |
| geoffh12 | 25/05/2013 | |
| From Queens Head pub Cwmyoy. Nice climb, nice hill, provided a different never seen before view of well known hills - worth a second visit. | dicky | 16/12/2012 |
| SO29350 21940 | Anton | 01/09/2012 |
| Ascent from Queens Head Pub. | Peapod21 | 31/03/2012 |
| tomandivy | 08/06/2011 | |
| Solo walk in lovely weather from Llanfihangel Crucorney. A great hillfort with terrific views in all directions. After a good explore I headed NNW up the ridge to Chwarel y Fan. | thesweetcheat | 04/06/2011 |
| Hetty | 11/04/2010 | |
| 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 Pearson | 02/04/2010 |
| BrianMatthews | 21/10/2009 | |
| Nice grassy hill fort. The day after South Wales traverse with a very sore foot. From NE: road then pasture | RHW | 29/03/2009 |
| 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! | DanTrig | 21/02/2009 |
| wonderful views open moorland with obvious summit. | hodder | 05/06/2007 |