Washington State Route 539
... that Washington State Route 539 is named the "Guide Meridian" because it follows a surveying meridian?
... that <b id="mwBAE"><a href="./Washington_State_Route_539" id="mwBAI" rel="mw:WikiLink" title="Washington State Route 539">Washington State Route 539</a></b> is named the "Guide Meridian" because it follows a <a href="./List_of_principal_and_guide_meridians_and_base_lines_of_the_United_States" id="mwBAM" rel="mw:WikiLink" title="List of principal and guide meridians and base lines of the United States">surveying meridian</a>?