Father Millet Cross
... that the Father Millet Cross on the grounds of Fort Niagara, at just 0.0074 acres (30 m2), was the smallest National Monument ever established in the United States?
... that the <b id="mwCGg"><a href="./Father_Millet_Cross" id="mwCGk" rel="mw:WikiLink" title="Father Millet Cross">Father Millet Cross</a></b> on the grounds of <a href="./Fort_Niagara" id="mwCGo" rel="mw:WikiLink" title="Fort Niagara">Fort Niagara</a>, at just <span about="#mwt23" data-mw='{"parts":[{"template":{"target":{"wt":"convert","href":"./Template:Convert"},"params":{"1":{"wt":"0.0074"},"2":{"wt":"acre"},"3":{"wt":"m2"},"4":{"wt":"-1"},"lk":{"wt":"off"}},"i":0}}]}' id="mwCGs" typeof="mw:Transclusion">0.0074 acres (30</span><span about="#mwt23" typeof="mw:Entity"> </span><span about="#mwt23">m</span><sup about="#mwt23">2</sup><span about="#mwt23">)</span>, was the smallest <a class="mw-redirect" href="./National_Monument_(United_States)" id="mwCGw" rel="mw:WikiLink" title="National Monument (United States)">National Monument</a> ever established in the <a href="./United_States" id="mwCG0" rel="mw:WikiLink" title="United States">United States</a>?