GALLOP (Government and Legislative Libraries Online Publication Portal) - access to almost 500,000 electronic government publications from all levels of Canadian government
UK legislation creating Colony of B.C. is available at RSBC 1897 (through HeinOnline, Provincial Statutes)
An Act to Provide for the Government of British Columbia (U.K.), 21 & 22 Vict., c. 99 (2 August 1858) - (this one also in Hendrickson, Journals of Colonial Legs.)
An Act to Define the Boundaries of the Colony of British Columbia, and to continue an Act to provide for the Government of the said Colony (U.K.), 26 & 27 Vict., c. 83 (28 July 1863)
An Act for the Union of the Colony of Vancouver Island with the Colony of British Columbia (U.K.), 29 & 30 Vict., c. 67 (6 August 1866) - (this one also in Hendrickson, Journals of Colonial Legs.)
FamilySearch.org - two separate databases for Crown grants (excellent - just needs free account => Search/Research Wiki - search "British Columbia", then select blue button "British Columbia Online Genealogy Records" for all BC sources)
LTSA for colonial maps - how to order: "Other Requests/Order Scan on Demand from Surveyor General"; see also Excel spreadsheet of ALL colonial holdings that Calvin Woelke sent me on March 16, 2021
UVic Vault - various collections, including historical BC maps (lots)
"Early British Columbia Maps" (from National Archives England), "Hudson's Bay Company Maps", "LTSA Maps"
Official Gazettes of the Province of BC
BC Legislative Assembly Sessional Clippings Books (1891-1972)
BRITISH COLUMBIA, PROVINCE
Historical BC legislation: go to HeinOnline (through CHL), then Legislation, then "Browse Databases by Name", then "Provincial Statutes of Canada"