The series contains records relating to mining leases (3 vols.). Volumes 1 and 2 are entitled Records of Mining, Leases and are registers of leases issued. They are arranged by Mining District. Included are entries for lease number, date and description of the lease, name of lessee, lot and locality of the lease, annual rental and other fees, expenditure requirements, date of assignment and assignee, letter reference numbers and cancellation information. Volume 3 is a record book of applications for mining leases recorded at Victoria, B.C., for the Stikine and Liard Mining Divisions of Cassiar District and Victoria District.