( 1) Ordnance Survey Map (Scale / Date)
OS 6" 1957
|
( 2) General reference
Arch. of Nidderdale - Extracts (E.S. Wood) p.16
|
( 3) The Yorkshire archaeological journal
TS Gowland 32, 1934-6 Page(s)62
|
( 4) General reference
Earthworks of England 1908 p. 461-2 (plan) (Allcroft)
|
( 5) General reference
Claro Wapentake (J.J. Sheahan) 1871 p.252
|
( 6) Field Investigators Comments
F1 RL 19-FEB-63
|
(7) Vertical aerial photograph reference number
NMR RAF/106G/UK475 3061 07-JUL-1945
|
(8) Vertical aerial photograph reference number
NMR OS/94023 107 19-MAR-1994
|
(9) Light detection and ranging (lidar) airborne survey
LIDAR SE3268 ENVIRONMENT AGENCY D0034396 8-Apr-2001
|