Disambiguation evidence for Keweenaw copper mining district via surface form
"Keweenawan copper deposits"
Triples (1)
Triples where some other subject referred to this entity
as "Keweenawan copper deposits".
Calumet & Hecla Mining Company
→
geologicalSetting
→
"Keweenawan copper deposits"
ⓘ
↳ resolves to Keweenaw copper mining district