Midlandvale, Alberta
... that in one year during the Great Depression of the 1930s, the coal mine at Midlandvale, Alberta, operated for only 52 days?
... that in one year during the <a href="./Great_Depression" id="mwDqU" rel="mw:WikiLink" title="Great Depression">Great Depression</a> of the 1930s, the coal mine at <b id="mwDqY"><a href="./Midlandvale,_Alberta" id="mwDqc" rel="mw:WikiLink" title="Midlandvale, Alberta">Midlandvale, Alberta</a></b>, operated for only 52 days?