The mound in the east of Chobham Common in Longcross Woods is a scheduled ancient monument ⁽³⁾. 

It is a low mound about 30m in diameter with an encircling ditch.  Very little is known about this mound.  It is on a low ridge and its shape and size is very much in keeping with a Bronze-age barrow.  Its position is interesting; when Chobham Common was clear of trees, if standing at the earthworks in the Slade to the south - alongside the parish boundary; then you would see this tumuli and the higher main barrow at Barrowhills.  If you then walked north, keeping the barrows in alignment, you would be defining the parish boundary.

The plan and profile were produced by an ASHLV team led by Chris Currie in March 2002.

There appears to be an an archaeological cut on the north side.  Tringham in 1934 wrote "the tumulus in Longcross Woods was opened in my grandfather's time and I believe an urn of rough pottery was found containing ashes" ^{2, p16}

References:- 

2.  The Story of Longcross,  H. J. F. Tringham 1934.

3    SAM No.136; SCC SMR No. 1856