Eocene Okanagan Highlands
... that the Eocene Okanagan Highlands span approximately 1,000 km (620 mi) through British Columbia and Washington?
... that the <b id="mwBnY"><a href="./Eocene_Okanagan_Highlands" id="mwBnc" rel="mw:WikiLink" title="Eocene Okanagan Highlands">Eocene Okanagan Highlands</a></b> span approximately <span about="#mwt88" data-mw='{"parts":[{"template":{"target":{"wt":"convert","href":"./Template:Convert"},"params":{"1":{"wt":"1,000"},"2":{"wt":"km"},"3":{"wt":"mi"},"abbr":{"wt":"on"}},"i":0}}]}' id="mwBng" typeof="mw:Transclusion">1,000</span><span about="#mwt88" typeof="mw:Entity"> </span><span about="#mwt88">km (620</span><span about="#mwt88" typeof="mw:Entity"> </span><span about="#mwt88">mi)</span> through British Columbia and Washington?