Narrow subrectangular slot cut into slope with ground disturbance which may be trackways, visible on APs. (1) (2) (3) (4)
Alternative interpretation is that it is a pond with a series of water courses - this is less likely.

<1> RAF, 1945, Air photos (Aerial photograph). SNT1161.

Other Refs: 3420

<2> Fairey Surveys, 1971, Vertical Air Photos (Aerial photograph). SNT681.

Other Refs: 3/357-8

<3> Fairey Surveys, 1974, Vertical Air Photos (Aerial photograph). SNT682.

Other Refs: 7/060-2

<4> Fairey Surveys, 1979, Vertical Air Photos (Aerial photograph). SNT683.

Other Refs: 5/012-3