North Retallack was a lead working north of Treamble, within the Great Retallack sett. A sett was the area over which mineral rights were granted; an individual working could have its own name within it.
A lead return is recorded for 1869. That gives a firm point in its activity without supplying a complete opening-and-closure history. Its mapped locality helps place this smaller operation beside Great Retallack, Treamble and the Great Perran Iron Lode.
Where it is
North Retallack Mine
50.36333, -5.11194 · Position source: https://goonhavern.com/mining/
North Retallack Mine — approximate historic locality, not a surveyed shaft or access point
Visiting and access
A location reference, not confirmation of public access or a visitor entrance.
Sources
Source: https://goonhavern.com/mining/