Route marker for the Mississippi River Trail (MRT)
<p>National Committee on Uniform Traffic Control Devices (NCUTCD) standards:
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<a rel="nofollow" class="external free" href="https://mutcd.fhwa.dot.gov/resources/interim_approval/ia15/index.htm">https://mutcd.fhwa.dot.gov/resources/interim_approval/ia15/index.htm</a>
<p>Widely used representation of a U.S. federal route marker. For example:
<a rel="nofollow" class="external free" href="http://www.bikemn.org/storage/documents/MRT-FactSheet.pdf">http://www.bikemn.org/storage/documents/MRT-FactSheet.pdf</a>
<a rel="nofollow" class="external free" href="https://www.ci.ramsey.mn.us/274/Mississippi-River-Trail">https://www.ci.ramsey.mn.us/274/Mississippi-River-Trail</a>
<a rel="nofollow" class="external free" href="https://lacrossetribune.com/mrt-sign/image_e72ed610-0561-11e1-b935-001cc4c03286.html">https://lacrossetribune.com/mrt-sign/image_e72ed610-0561-11e1-b935-001cc4c03286.html</a>
<a rel="nofollow" class="external free" href="https://www.slideshare.net/PWPB_Slides/54-walton-10162012">https://www.slideshare.net/PWPB_Slides/54-walton-10162012</a>
</p>
<a rel="nofollow" class="external free" href="https://www.mississippirivertrail.org/about.html#signs">https://www.mississippirivertrail.org/about.html#signs</a>