Epping Forest is an area of ancient woodland in south-east England, straddling the border between north-east Greater London and Essex. It is a former royal forest, and is managed by the City of London Corporation.
It covers 2,476 hectares (6,118.32 acres) and contains areas of woodland, grassland, heath, rivers, bogs and ponds, and most of it is a Site of Special Scientific Interest. Stretching between Forest Gate in the south and Epping in the north, Epping Forest is approximately long in the north-south direction, but no more than from east to west at its widest point, and in most places considerably narrower. The forest lies on a ridge between the valleys of the rivers Lea and Roding; its elevation and thin gravelly soil (the result of glaciation) historically made it unsuitable for agriculture. It gives its name to the Epping Forest local government district which covers part of it.