© Simon Frasier
Falstone Moss, near Tower Knowe at Kielder, is the most accessible of the Border Mires. The marked trail leads from the road but is also accessible from the lake trail. The route climbs up through heather moorland before proceeding through a second gate and eventually onto a boardwalk across the bog.
The boardwalk heads to a small central pond. Species such as red grouse, adder, roe deer and the hairy caterpillars of northern eggar moth can be seen from the walk. In summer the central pool becomes alive with dragonflies and damselflies such as the common hawker, black darter and large red damselfly. Sphagnum mosses, the main peat-forming plants, are localised alongside the boardwalk. Growing in the moss are bog asphodel, cranberry, and occasionally bog rosemary.