Fonds consists of records related to the administration and operations of Canadian Collieries (Dunsmuir) Ltd and its successor Canadian Collieries Resources Ltd. Fonds is arranged in the following series: 1) Annual reports; 2) Reports; 3) Letters of agreement; 4) Office vouchers; 5) Maps; 6) Employment records; 7) Union Bay records and 8) Miscellaneous.

Fonds consists of records related to the Wellington Colliery Company's operations at the Comox Mines, Cumberland. Fonds is arranged in two series 1) Accounts and 2) Invoices.