From the Cambrian Mountains to Cardigan Bay, the 83-mile Teifi Valley Trail is a grassroots initiative designed to revive a once-thriving area

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p here, the river was a mere gurgle; a babbling babe finding its way into the world. A few sheep roamed, a kite wheeled and a spring-clean wind ruffled the tussocks on the barren hills and rippled the pools. It was a stark yet striking beginning. As we followed a brand new fingerpost, skirted Llyn Teifi – the river’s official source – and picked up the fledgling flow, there was a sense great things lay ahead, for us both.

The Teifi rises in Ceredigion’s Cambrian Mountains – the untramped “green desert of Wales” – and pours into Cardigan Bay 75 miles (120km) south-west. It’s one of the longest rivers wholly within Wales and, historically, one of its most significant: the beating heart of the country’s fishing and wool-weaving industries, 12th-century abbeys at either end, Wales’s oldest university en route.

However, those abbeys lie in ruin now, salmon and sewin (brown trout) stocks have plummeted, and the mills are shuttered – though the factory in the village of Dre-fach Felindre now operates as the National Wool Museum. Even the future of Lampeter’s venerable university is uncertain following the decision to end undergraduate teaching there. It’s as if the valley has lost its purpose. So some determined local walkers are giving it a new one.