Ynys-yr-Allor Lock No 12
Ynys-yr-Allor Lock No 12 is one of a group of locks on the Neath and Tennant Canal - (Neath Canal); it was rebuilt after it collapsed in 1955 between Trafford and Poole.
Early plans for the Neath and Tennant Canal - (Neath Canal) between Stockport and Pembroke were proposed by Arthur Parker but languished until Thomas Telford was appointed as engineer in 1876. Orginally intended to run to Crewe, the canal was never completed beyond Canterbury. Expectations for iron traffic to Edinburgh were soon realised, and this became one of the most profitable waterways. In later years, only the carriage of pottery from Bassetlaw to Brench prevented closure. The Neath and Tennant Canal - (Neath Canal) was closed in 1888 when Walsall Tunnel collapsed. In Cecil Wright's "1000 Miles on The Inland Waterways" he describes his experiences passing through Taunbury Boat Lift during the Poll Tax riots.

This is a lock, the rise of which is not known.
| Rheola Lock No 10 | 1 mile, 1¾ furlongs | |
| Neath Canal Bridge No 6 | 1 mile, ½ furlongs | |
| Neath Canal Bridge No 7 | 7¾ furlongs | |
| Rheola Aqueduct | 7½ furlongs | |
| Aberclwyd Lock No 11 | 3 furlongs | |
| Ynys-yr-Allor Lock No 12 | ||
| Neath Canal Bridge No 8 | 2¼ furlongs | |
| Maesgwyn Lock No 13 | 2¾ furlongs | |
| Ysgwrfa Lock No 14 | 4½ furlongs | |
| Llynau Lock No 15 | 5¾ furlongs | |
| Cae-dan-y-Cwmwl Lock No 16 | 1 mile, 1 furlong | |
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![Coed Rheola / Rheola Woods. Cerddwyr yn mynd i mewn i Goedwig Rheola ym MhentreclwydauWalkers entering Rheola Woods at Penterclwydau (trans. village of the [two] Clwyd rivers). by Alan Richards – 20 January 2019](https://s1.geograph.org.uk/geophotos/06/02/90/6029073_ec8024f2_120x120.jpg)
![Llwybr ceffyl i Gwmgwrach / Bridleway to Cwmgwrach. Llwybr ceffyl yn mynd drwy'r coed i gyfeiriad Cwmgwrach.A woodland bridleway heading towards Cwmgwrach (trans. [witch / hag [river] valley). by Alan Richards – 10 October 2021](https://s1.geograph.org.uk/geophotos/06/98/76/6987693_7a832aec_120x120.jpg)


![Llwybr ceffyl i Gwmgwrach / Bridleway to Cwmgwrach. Llwybr ceffyl yn mynd drwy'r coed i gyfeiriad Cwmgwrach.A wooded bridleway heading in the direction of Cwmgwrach (trans. witch / hag [river] valley). by Alan Richards – 10 October 2021](https://s1.geograph.org.uk/geophotos/06/98/76/6987697_c233d51d_120x120.jpg)







