[6][7] The following routes are maintained by the Ministry of Transportation as part of British Columbia's highway system, but they are Currently unnumbered.

[5][10] The following routes are within British Columbia but are considered part of the Yukon highway system.

Although the Alaska Highway crosses the 60th parallel north, and thus the border with the Yukon, nine times (including six crossings between historic miles 588 and 596), the highway route number changes just once, between Lower Post, British Columbia, and Watson Lake, Yukon.

The Yukon section east of here is maintained by Public Works Canada as part of the B.C.

This transition took place during the 1940/1941 fiscal year and led to the installation of route markers along multiple highways.