|Old slab bridge on the Queffleuth|
The water-quality of the Queffleuth is high, making it a habitat for otters, trout and salmon, just as it once made the river good for paper-production and the site of many mills. The most interesting feature on the circuit is perhaps the irrigation system once used to keep the Prat ar Gaor (Goats' meadow) well-watered even in times of drought. A mini-barrage and valve system were constructed to feed a bief - a supply channel similar on a smaller scale to the bief de partage of the Nantes-Brest Canal - cut straight to enclose the land and connect the two ends of a wide bend in the main river course. From this trenches were cut across the meadow in the 'fish-bone style' with a central spine and many off-shoots, taking moisture to almost all parts of the pasture land. This skeleton outline is still just visible on the ground.
Apart from historical and natural interest, it's a pretty route, well worth a gentle afternoon stroll. Park in the lay-by just off the D769 at Le Pléen (turning to Pleyber-Christ) and follow well-placed and (for once) consistent green waymarks.