| Name: | Esgair Dderw |
| Hill number: | 18878 |
| Height: | 462.7m / 1518ft |
| Parent (Ma): | 2205 Pen y Garn |
| County/UA: | Powys |
| Topographical area: | WM02 Pumlumon-amlwg |
| SMC/RHB section: | 31C: South-West Wales |
| Catchment: | Wye |
| Class: | Tump (400-499m) (Tu,4) |
| Grid ref: | SN 94365 70018 |
| Summit feature: | no feature: moss |
| Drop: | 31.2m |
| Col: | 431.5m SN 9387 6995  |
| OS map sheet(s): | (1:50k) 136 147 (1:25k) 200W |
| Observations: | vegetated outcrop 115m SSW at SN 94342 69906 is 0.2m lower |
| Survey: | Trimble GeoXH 6000 |
| 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. Please quote the hill number and hill name.
| Logged Descriptions (logged by 38 users) | By | Date of Ascent |
| From road to WSW, did Esgair Penygarreg first, then up good tracks almost to top. Checked out 2-3 possible HPs. | PeterD | 19/07/2023 |
| From the waterfall car park. Easy pleasant walk on grass for most of the way. Great views of the cliffs to nw. | Campbell Singer | 13/01/2022 |
| G, My | Idris | 28/09/2021 |
| From campsite in Rhayader up lane to track after waterfalls which leads near to Esgair Penygarreg summit visited both trigs. Returned to lane and walked north west then set off across country to Penrhiw-wen. Returned to Rhayader on track over Esgair Dderw. | dgresty | 18/10/2020 |
| from 417 with donna and manon | underhill | 08/08/2020 |
| From 415m brow. Esgair Perfedd then across to Esgair Dderw. | clivevilla | 18/01/2020 |
| A Fantastic February day. | Rob Rees | 22/02/2019 |
| A easy diversion from the ROW. A nearly 2m high standing stone is nearby. A pleasant hill. | Alan Moore | 01/01/2019 |
| Parked at the small layby by the falls. Storm Eleanor was making things hard going on the return. Monolith an interesting diversion. | DanMaisieBex | 03/01/2018 |
| 8 miles, 1129ft, Maen-Serth Standing Stone walk. | stephenbuda | 07/10/2017 |
| Continuation of walk from Penrhiw-wen. Headed south to join the by-way, following it most of the way to the summit. To descend, headed NW to a small pool (not marked on the maps), and then steeply down to join the bridleway NE via Cwmcoch to the road. Solo. | Man of Kernow1 | 12/03/2017 |
| A little round (ACW) of Moelfryn, Penrhiw-wen and Esgair Dderw from SN 94477 70755. | summitsup | 08/05/2016 |
| Sixth of nine on sunny day (Drum Ddu/Y Gamriw/Y Foel/Esgair Penygarreg/Esgair Perfedd/Esgair Dderw/Penrihw-Wen/Lethyr Melyn/Gornoeth) | Fergalh | 16/04/2016 |
| With Lynfa | Rob Pen y Garn | 02/01/2016 |
| On a small round of hills. Parking on mountain road, by waterfall. Flatish hill with interesting monlith approx 60m W of HP. | jonglew | 28/06/2015 |
| From Elan Valley Mountain Road (SN 93262 69802) - Esgair Dderw - Penrhiw-wen - Esgair Perfedd - Esgair Penygarreg. | david230201 | 29/12/2014 |
| 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. | JohnStoneham | 07/09/2014 |
| From west | RHW | 03/04/2011 |
| kanderson | 24/11/2023 | |
| TK | 18/02/2023 | |
| Dusty | 18/11/2021 | |
| Adrian | 07/08/2021 | |
| davidpettit84 | 01/08/2021 | |
| TREBORK | 26/07/2021 | |
| garethr10 | 01/07/2017 | |
| Hetty | 09/10/2016 | |
| iaindbrown | 05/04/2016 | |
| liljonb | 28/12/2015 | |
| MM | 26/09/2015 | |
| KM | 26/09/2015 | |
| sezlowe | 12/05/2015 | |
| boxblade | 07/03/2015 | |
| salen | 29/06/2014 | |
| Hetty | 01/03/2014 | |
| Anton | 17/02/2009 | |
| andrew.allum | 01/01/2000 | |
| IainT | 17/03/1989 | |
| thefunkylibrarian | blank |