Ordnance Survey Sheets

Archive Unit

Scope and Content

Holywell-Halkyn Mining & Tunnel Co: OS 6-inch sheets 6 & 9 (Second edition 1900) marked to show proposed drainage area, mines and veins between Milwr and Windmill, and line of Halkyn District Drainage Tunnel.

X2/7.

Note

Please order documents using the alternative reference number (where provided).