The Northern B.C. Archives & Special Collections at the University of Northern British Columbia has digitized more than 1,700 historical images of exploration in northern B.C. This project received support from the B.C. History Digitization Program, which was launched by the Irving K. Barber Learning Centre.
You can find out more about the project here:
http://library.unbc.ca/UNBCArchives/nexplore/northernexplorations1.html