Llanidloes is the first town on the Severn.
Distance from Source: 17 km (10.6 miles)
Height above Sea Level: 165m
Width of river: 13m
Llanidloes is built on an area of flat land around the river's confluence with a tributary, the Afon Clywedog.
The river Clywedog joins the river Severn
The Clywedog has been dammed a few miles upstream, to form a reservoir, Lyn Clywedog. The reservoir provides some water locally and a small amount of electricity is also generated, but it was built primarily to regulate the flow of the Severn.
Follow this link to find out more about the Lyn Clywedog reservoir
Bridgend Factory, built in 1834, was one of the many flannel mills in the area, most of which have now gone. It is a reminder of the areas industrial past which also included lead mining and leather tanning.
The water is very clear and fast flowing.
Can you see the stones and rocks brought down the river from the mountains?
Berty Beaver wonders why there are stones in front of each pillar of the bridge arches. Do you know why?
The river bank, on the side close to the high street, is man made. Why do you think this is?
The material that is carried by a river and then deposited.
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