What is La Línea (tunnel)?
'''La Línea''' ({{lang-en|The Line}}) is a highway tunnel between the cities of [[Calarcá]], [[Quindío]] and [[Cajamarca, Tolima|Cajamarca]], [[Tolima Department|Tolima]] in [[Colombia]]. It is in the central range of the [[Andes]] mountains. It is the longest road tunnel in [[Latin America]],<ref>{{cite web |url=http://www.imcportal.com/contenido.php?option=shownews&newsid=3174&render=page |title=Hallazgos en el túnel de La Línea |access-date=1 December 2008 |date=28 October 2008 |publisher=Portal de Información Minera Colombiana |language=es |url-status=dead |archive-url=https://web.archive.org/web/20110713015301/http://www.imcportal.com/contenido.php?option=shownews&newsid=3174&render=page |archive-date=13 July 2011 }}</ref> and in the [[Americas]].<ref>{{cite web |url=http://dot.alaska.gov/creg/whittiertunnel/accomplishments.shtml |title=Whittier Access Tunnel > Accomplishments |access-date=5 September 2020|date=5 September 2020|publisher=Alaska Department of Transportation and Public Facilities|language=en|url-status=dead|archive-url=https://web.archive.org/web/20200905174058/http://dot.alaska.gov/creg/whittiertunnel/accomplishments.shtml|archive-date=5 September 2020 }}</ref> The total length of the tunnel is {{convert|8,652|m|ft}}, its western entrance being at {{convert|2,420|m|ft}} above msl, {{convert|19|km|mi}} east of the city of [[Armenia, Colombia|Armenia]] and the eastern one at {{convert|2,505|m|ft}} above msl, at {{convert|37.8|km|mi}} west of [[Ibagué]].<ref>{{cite web |url=http://www.conconcreto.com/Default.aspx?tabid=58&idProyecto=1 |title=Túnel Piloto La Línea o Túnel del Segundo Centenario |access-date=1 December 2008 |publisher=ConConcreto |language=es |url-status=dead |archive-url=https://web.archive.org/web/20080911180434/http://www.conconcreto.com/Default.aspx?tabid=58&idProyecto=1 |archive-date=11 September 2008 }}</ref> Constructions of the pilot tunnel started on 30 September 2004 and both sides of the pilot met on 2 August 2008.<ref>{{cite web |url=http://home.no.net/lotsberg/data/