Mazeno Ridge
... that the 13 km (8.1 mi) Mazeno Ridge route to the summit of Nanga Parbat was first completed in 2012?
... that the <span about="#mwt46" data-mw='{"parts":[{"template":{"target":{"wt":"cvt","href":"./Template:Cvt"},"params":{"1":{"wt":"13"},"2":{"wt":"km"},"adj":{"wt":"on"}},"i":0}}]}' id="mwA6Q" typeof="mw:Transclusion">13</span><span about="#mwt46" typeof="mw:Entity"> </span><span about="#mwt46">km (8.1</span><span about="#mwt46" typeof="mw:Entity"> </span><span about="#mwt46">mi)</span> <b id="mwA6U"><a href="./Mazeno_Ridge" id="mwA6Y" rel="mw:WikiLink" title="Mazeno Ridge">Mazeno Ridge</a></b> route to the summit of <a href="./Nanga_Parbat" id="mwA6c" rel="mw:WikiLink" title="Nanga Parbat">Nanga Parbat</a> was first completed in 2012?