Holden Lixiviation Works
... that the 165-foot (50 m) smokestack at the Holden Lixiviation Works in Aspen was said to be the tallest in Colorado when it was in use?
... that the <span about="#mwt41" data-mw='{"parts":[{"template":{"target":{"wt":"convert","href":"./Template:Convert"},"params":{"1":{"wt":"165"},"2":{"wt":"ft"},"adj":{"wt":"on"}},"i":0}}]}' id="mwCVk" typeof="mw:Transclusion">165-foot (50</span><span about="#mwt41" typeof="mw:Entity"> </span><span about="#mwt41">m)</span> smokestack at the <b id="mwCVo"><a href="./Holden/Marolt_Mining_and_Ranching_Museum" id="mwCVs" rel="mw:WikiLink" title="Holden/Marolt Mining and Ranching Museum">Holden Lixiviation Works</a></b> in <a href="./Aspen,_Colorado" id="mwCVw" rel="mw:WikiLink" title="Aspen, Colorado">Aspen</a> was said to be the tallest in <a href="./Colorado" id="mwCV0" rel="mw:WikiLink" title="Colorado">Colorado</a> when it was in use?