( 1) Ordnance Survey Map (Scale / Date)
OS 6" 1958
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( 2) General reference
Ainsty of York, 1902, p.296, (E. Bogg)
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( 3) Field Investigators Comments
F1 RL 20-MAY-63
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( 4) Field Investigators Comments
F2 BHP 03-JAN-75
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( 5a) General reference
Bolton Percy Estate map PR BP 15 1596
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( 5) General reference
Moated Sites of Yorks 1973 122 (H E Jean Le Patourel)
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( 6) Field Investigators Comments
F3 ISS 07-MAR-76
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(7) Vertical aerial photograph reference number
NMR CPE/UK/1879/3175 6-DEC-1946
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