File:US 180.svgDescriptionUS 180.svg English: 750 mm × 600 mm (30 in × 24 in) U.S. Highway shield, made to the specifications of the 2004 edition of Standard Highway
File:Perth County Road 180.svg Ontario M110.svg. This vector image includes elements that have been taken or adapted from this file: US 830.svg. English determination method: SHA-1
File:Kingston City Road 38.svgthis file: Ontario M202.svg. This vector image includes elements that have been taken or adapted from this file: US 341.svg. This vector image includes
File:US 180 (1948).svgDescriptionUS 180 (1948).svg 1948 style US Route 180 highway marker Date 7 January 2011, 16:11 (UTC) Source File:US XX (1948).svg Author Fredddie, Levente
File:US 180 (1961).svgDescriptionUS 180 (1961).svg 1961 style US Route 180 highway marker Date 13 December 2010, 06:44 (UTC) Source File:US XX 1961.svg Author Fredddie, Scott