 The Brierdene wildlife site is maintained and managed by the Friends of Brierdene group of volunteers.The name Brierdene comes from the Brierdene Burn that runs past the area effectively separating Whitley Lodge and Brierdene.The burn rises on farmland east of Killingworth as a trickle from the top of a slope, flows into a drainage ditch, grows to a burn, then goes under the A19 road.