Moelwyn Quarry Incline
| Moelwyn Quarry Incline | |
| Previous Station | Dduallt |
| Previous Location | Archer's Dam |
| Status | Location |
| Next Location | Llyn Ystradau |
| Next Station | Tanygrisiau |
Just south of the power station can be seen the lower remains of the series of inclines which ran from here up to the quarries above the present Llyn Stwlan - and which are fairly well preserved. This upper lake drowned part of the system, at the point where a number of small inclines joined the main pitch. These inclines served small mines on the slopes of Moelwyn Bach and Moelwyn Mawr.
When working they connected with the old line above Moelwyn Halt.
In the construction of the Deviation a culvert (Culvert 7) was required at this point. Small working sites, Mine Site to the north and New Site to the south, were opened in autumn 1972, but much of the line south of here was built using spoil from Tunnel North cutting railed out through the gap in Archer's Dam. North of here toward the Llyn Ystradau temporary terminus the formation was largely graded in February 1975 by Mr Eifion Williams of Oakeley Quarry using excavating machines. (FRM 69, Summer 1975)