Powys television presenter Iolo Williams is set to appear in a new programme in which he explores parts of his home county.

Iolo: The Last Wilderness of Wales will air on BBC Wales from Thursday, August 6, and will see the Springwatch presenter exploring the wildlife of the Cambrian Mountains.

Home to some of the country's rarest birds including the goshawk, golden plover and curlew, as well as the country’s only golden eagle, the mountains are a haven for wildlife.

But it’s the celebrated osprey that Iolo visits in this first programme, near Llyn Clywedog.

A species that has only recently returned from extinction to Wales, there have been regular sightings of ospreys fishing on the lake. The first episode sees Iolo meet some of the locals in a bid to capture the impressive spectacle.

Iolo then heads to the Upper Rheidol Valley in search of an animal that’s a relative of the otter and stoat, the pine marten.

Pine marten were re-introduced to the area from Scotland after years of being presumed extinct. But Iolo’s plan to see a pine marten is initially foiled by some unexpected guests.

Iolo said; “These remote uplands form the heart and spine of Wales. With a handful of roads crossing this stunning area of mid Wales, much of the landscape is only accessible on foot. Wildlife can be incredibly difficult to find here, but when you do find it, it’s usually very special. It’s a trek in what can be truly descibed as the last wilderness of Wales.”