The standard gauge Aberystwyth and Welsh Coast Railway was expanding rapidly from its base at Machynlleth, however, and in 1863 had reached Tywyn, so McConnel decided to build his line from the quarry to Tywyn, as the nearest point where slate could be transferred to the standard gauge railway.

On 1 April 2008, in a move thought to be unprecedented for a community council of its size, Machynlleth Town Council took ownership of the Plas and its parkland and facilities.

Machynlleth has a special role in Welsh history because of its connection with Owain Glyndŵr, a Prince of Wales who rebelled against the English during the reign of King Henry IV.

The lateral fricative occurs as the ll of Welsh, as in Lloyd, Llewelyn, and the town of Machynlleth (), as the unvoiced ' hl ' and voiced ' dl ' or ' dhl ' in the several languages of Southern Africa ( such as Xhosa and Zulu ), and in Mongolian.

Some of his achievements included holding the first ever Welsh Parliament at Machynlleth and plans for two universities.

On 3 January 1863 the standard gauge Newtown and Machynlleth Railway opened, followed on 1 July of the same year by the line from Machynlleth to Borth of the Aberystwyth and Welsh Coast Railway.

Machynlleth was the seat of Owain Glyndŵr's Welsh Parliament in 1404, and as such claims to be the " ancient capital of Wales ".

* Owain Glyndŵr, ( c. 1349 or 1359 – c. 1416 ), Welsh ruler and Prince of Wales, crowned in Machynlleth in 1404.

1430-1475 ), Welsh language poet from Machynlleth.

* David Griffiths, ( 20 December 1792-21 March 1863 ), Welsh missionary and Bible translator to Madagascar, lived from 1858 until his death in Machynlleth.

* William David Davies, ( 18 January 1897 – 7 July 1969 ), Welsh Presbyterian minister and writer on theological topics, living in Machynlleth.

* Emrys James, ( 1 September 1928-5 February 1989 ), Welsh Shakespearean actor, born in Machynlleth.

* Gareth Glyn, ( born 1951 ), Welsh composer and radio broadcaster, born in Machynlleth.

* David Russell Hulme, ( born 19 June 1951 ), Welsh conductor and musicologist, native of Machynlleth.

* Gwynn ap Gwilym, ( born 1955 ), Welsh language poet, novelist, editor and translator, raised in Machynlleth.

* Aberystwyth and Welsh Coast Railway between Machynlleth and Aberystwyth / Pwllheli

Aberhosan () is a village in the Welsh principal area of Powys, located between the historic town of Machynlleth and village of Dylife.

Glyndŵr was crowned in 1404 at the Welsh parliament or Cynulliad held at Machynlleth — but with whose crown?

Proposals to construct a line to connect the slate quarries in the district around Corris, Corris Uchaf and Aberllefenni with wharves on the estuary of the Afon Dyfi at Derwenlas and Morben, south-west of Machynlleth, first appeared around 1850 with Arthur Causton as engineer.

Montgomery, the traditional county town, shared administrative functions with Machynlleth, on the other side of the county.

* Notable people with connections to Machynlleth

Pwllheli railway station is the terminus of the Cambrian Coast Railway running to Machynlleth with services continuing to Shrewsbury and Birmingham.

The railway's Machynlleth station building, built in 1905, can still be seen alongside the road approaching the town from the north.

Running in a horse-shoe shape, it passes small market towns such as Llanidloes and quiet villages including Abbeycwmhir and Llanfyllin, traversing central Mid Wales to Machynlleth near the Dyfi estuary and back again across Wales via Lake Vyrnwy and the valley of the River Vyrnwy to Welshpool, close to the English border.

* Thomas Provis Wickham ( born 1810 at Weymouth, Dorset ; died on 1 March 1890 at Machynlleth, Montgomeryshire ), English cricketer.

* George Joshua Richard Monbiot, ( born 27 January 1963 ), English writer, lives in Machynlleth, Wales.

Soon afterwards, he called his first Parliament ( or more properly or " gathering ") of all Wales at Machynlleth where he was crowned Prince of Wales and announced his national programme.

It is the sister city of Machynlleth, Wales.

* Machynlleth, where Owain Glyndŵr held a parliament in 1404.

The line opened in 1859, and originally ran from Machynlleth north to Corris and on to Aberllefenni.

The proposed Corris, Machynlleth & River Dovey Railway would have run along Dulas Valley to the north shore of the Dyfi at Pant Eidal.

On 12 July 1858 the Corris Machynlleth & River Dovey Tramroad ( CM & RDT ) was formed, and immediately began construction on a gauge railway.

The opening of the standard gauge line to Borth made the section of the CM & RDT from Machynlleth to Morben obsolete.

It was much easier to transship slates to the main line at Machynlleth, so the lower section of the tramway was abandoned.

They applied, on 13 November 1863 to convert the tramroad to a railway, adopt steam locomotives and formally close the section between Machynlleth and Derwenlas.

In January 1864, McConnel formed the Aberdovey Slate Company, which leased the land including Bryn Eglwys from the landowner, Lewis Morris of Machynlleth.

** 1tp2h continues to Aberystwyth and Pwllheli after dividing at Machynlleth.

Machynlleth: Kittwake.

The main towns are Machynlleth, Llanidloes, Montgomery, Newtown and Welshpool.

The section Moat Lane to Newtown has since been renumbered A489, and from Moat Lane to Glantwymyn the A470 replaced the A489 which ran all the way from Machynlleth to the A49 road north of Craven Arms in south Shropshire.

The family owned the historic house and gardens at Mount Stewart, County Down, Northern Ireland, the Wynyard Park estate in County Durham as well as Londonderry House on Park Lane in London ( where the Hilton London Hotel is now ) and Plas Machynlleth in mid-Wales.

It starts at Merlin's Bridge near Haverfordwest, from where it travels north west to St David's, then switches back north east through Fishguard, Cardigan, Aberaeron, Aberystwyth, Machynlleth and Corris.

The section of road in the Dulas valley between the Afon Dyfi near Machynlleth and Corris was built in the 1840s at the instigation of the local slate quarry owners to replace the old turnpike road on the opposite side of the valley.