South Proudfoot Park in NW London. Local trees in the ravine are mostly honey locust and in the Spring are covered in white pea blossoms. Locust trees have hard wood that is resisitant to rot and were once used for fence posts The park also has large black walnut trees.
Deadfall is a thicket of fallen trees and shrubs. They provide cover for critters and cachers to hide stuff including Deadfall Cache
Parking is sporadic and would recommend parking in the bowling alley or gymn parking lot at the bottom of the hill. There are lots of caches in the area, so make a day of it.