While Engine 23-1 was onscene of a working house fire with Keystone Valley Fire Deparment, the Avondale Fire Company along with an engine from Kennett Fire Company were dispatched for a tree fire on the White Clay Preserve Trails at 1045 hours. Assistant 23 (S.Cole) went responding along with Engine 24-1 on dispatch, followed by Engine 23-2. Assistant 23 was advised that a tree was down across a trail and on fire. With this report, ATV 24 was requested for assistance to get into the trail. Assistant 23 arrived conforming the report and established White Clay command. First arriving crews made access into the wooded area, walking the trail and finding the tree. The tree was down with an active fire inside. ATV 24 arrived and was put into service on the trail assisting to extinguish the fire. The fire was placed under control and companies started to clear.