The Mountain District was mapped as part of Pemberton’s surveys of southern Vancouver Island during the 1850s, which can be seen on this map from 1859.
The Colonial Despatches Team.
Mountain District.The Colonial Despatches of Vancouver Island and British Columbia 1846-1871, Edition 2.0, ed. The Colonial Despatches Team. Victoria, B.C.: University of Victoria.
https://bcgenesis.uvic.ca/mountain_district.html.
Last modified: 2020-03-30 13:22:16 -0700 (Mon, 30 Mar 2020) (SVN revision: 4193)