Selma to Montgomery National Historic Trail
... that at only 54 mi (87 km) long, the Selma to Montgomery National Historic Trail commemorating the Voting Rights March of 1965 is the shortest National Historic Trail in America?
... that at only <span about="#mwt78" data-mw='{"parts":[{"template":{"target":{"wt":"cvt","href":"./Template:Cvt"},"params":{"1":{"wt":"54"},"2":{"wt":"mi"}},"i":0}}]}' id="mwBTo" typeof="mw:Transclusion">54</span><span about="#mwt78" typeof="mw:Entity"> </span><span about="#mwt78">mi (87</span><span about="#mwt78" typeof="mw:Entity"> </span><span about="#mwt78">km)</span> long, the <b id="mwBTs"><a href="./Selma_to_Montgomery_National_Historic_Trail" id="mwBTw" rel="mw:WikiLink" title="Selma to Montgomery National Historic Trail">Selma to Montgomery National Historic Trail</a></b> commemorating the Voting Rights March of 1965 is the shortest <a href="./National_Trails_System#National_Historic_Trails" id="mwBT0" rel="mw:WikiLink" title="National Trails System">National Historic Trail</a> in America?