Afon Marlais, Pembrokeshire facts for kids

The Afon Marlais is a small river in West Wales. It flows into a bigger river called the River Tâf. This river is located in Pembrokeshire. The Afon Marlais flows through an area known as the Vale of Lampeter. It joins the Tâf river near Whitland. The river is about 10 kilometers (6 miles) long. Its name comes from the Welsh words 'marw glais'. This means 'stagnant stream'.

Where Does the Afon Marlais Flow?

The Afon Marlais starts near a place called Blaenmarlais. This is close to Redstone Cross. Redstone Cross is where the A40 and B4313 roads meet. The river begins in the community of Narberth.

At first, the Marlais flows towards the east. Then it turns southeast. It passes under the A478 at Pant-y-gorphwys. Along its journey, many smaller streams join it. The river then turns east and northeast. It winds its way through Lampeter Vale.

The Afon Marlais flows under the A40 road again at Pont Fadog. About 500 meters (1,640 feet) further, it joins the Tâf river. For most of its length, the river forms a border. It separates the communities of Lampeter Velfrey and Llanddewi Velfrey in Pembrokeshire. One of its smaller streams is called Afon Cwm.

What is the Afon Marlais Made Of?

The area around the river has many rocks from the Llandeilo age. These are a type of limestone.

Tiny pieces of gold have been found in the river. Some of these gold pieces have sharp edges. This suggests that the gold comes from a source very close by.

Bridges Over the River

There are a few bridges that cross the Afon Marlais. Two of these are Pant-y-Gorphwys bridge and Pont Fadog. These bridges are considered historic places. They have been recorded by the Royal Commission.

Old Buildings Near the River

An old map from 1907 shows a mill near the river. It was called White Mill. This mill was used to make flour. You can still see it on current maps.