Transportation website (页面存档备份,存于互联网档案馆) Colorado Highway Data New Colorado Highway Maps Old Colorado Highway Maps The Highways of Colorado by Matthew Salek
(PDF)存档于2008年5月29日). American Association of State Highway and Transportation Officials. CBO: Highway Account Faces Possible Insolvency Next Fiscal Year
87號美國國道的輔助線 管理方 科羅拉多州運輸局[*]、蒙大拿州運輸部[*]、Oklahoma Department of Transportation[*]、Wyoming Department of Transportation[*] 道路總長 1,791英里(2,882公里) 启用时间 1935 主要连接道路