Historical clue formulations

• ___ Highway (nearly 1,400-mile route that runs through Whitehorse, Yukon Territory) — 2020-03-16
• Highway through the Yukon — 2017-04-28
• U.S.-built route that's mostly outside the U.S. — 2015-06-27
• ___ Highway (historic route to Delta Junction) — 2013-11-13
• ___ Highway (route from Dawson Creek) — 2011-09-04
• ___ Highway (route through Whitehorse, Yukon) — 2011-01-10
• ___ Highway (old 1,500-mile route) — 2006-10-17
• Highway through the Yukon — 2006-02-21
• Way up north, once — 2004-11-20
• Old highway name — 2003-06-07
• Old highway to Fairbanks — 2003-04-23
• Renamed northern highway — 2002-09-26
• Old highway name — 2002-08-10
• Highway to Fairbanks — 2002-03-05
• Old road to Fairbanks — 2001-01-21
• Military supply route of the 40's — 2000-02-12
• ___ Highway (road through Ft. Nelson) — 1998-05-20
• ___ Highway (route from Dawson Creek) — 1998-04-13
• Northern highway, formerly — 1996-05-05
• _____ Highway — 1994-09-23
• Route near Bear Creek Pass — 1994-07-02
• Road to Fairbanks — 1994-02-06
• Road from Dawson Creek — 1994-02-03