Oban
... that in Saskatchewan, Oban was known for having the last Interlocking tower at the CNR and CPR level crossing, until it was closed in 1990?
... that in <a href="./Saskatchewan" id="mwDs4" rel="mw:WikiLink" title="Saskatchewan">Saskatchewan</a>, <b id="mwDs8"><a href="./Oban,_Saskatchewan" id="mwDtA" rel="mw:WikiLink" title="Oban, Saskatchewan">Oban</a></b> was known for having the last <a href="./Interlocking" id="mwDtE" rel="mw:WikiLink" title="Interlocking">Interlocking</a> tower at the <a href="./Canadian_National_Railway" id="mwDtI" rel="mw:WikiLink" title="Canadian National Railway">CNR</a> and <a href="./Canadian_Pacific_Railway" id="mwDtM" rel="mw:WikiLink" title="Canadian Pacific Railway">CPR</a> <a href="./Level_crossing" id="mwDtQ" rel="mw:WikiLink" title="Level crossing">level crossing</a>, until it was closed in 1990?