Roxbury Heritage State Park
... that a marker dedicated in 2009 at Roxbury Heritage State Park in Boston was the first monument added to the Henry Knox Trail since 1927?
... that a marker dedicated in 2009 at <b id="mwArI"><a href="./Roxbury_Heritage_State_Park" id="mwArM" rel="mw:WikiLink" title="Roxbury Heritage State Park">Roxbury Heritage State Park</a></b> in <a href="./Boston" id="mwArQ" rel="mw:WikiLink" title="Boston">Boston</a> was the first monument added to the <a href="./Henry_Knox_Trail" id="mwArU" rel="mw:WikiLink" title="Henry Knox Trail">Henry Knox Trail</a> since 1927?