Lake Ilo National Wildlife Refuge
...that over 58,000 Paleo-Indian artifacts were unearthed at Lake Ilo National Wildlife Refuge in North Dakota when lake waters were lowered on the lake in 1989 to reconstruct a dam?
...that over 58,000 <a class="mw-redirect" href="./Paleo-Indian" id="mwAvo" rel="mw:WikiLink" title="Paleo-Indian">Paleo-Indian</a> artifacts were unearthed at <b id="mwAvs"><a href="./Lake_Ilo_National_Wildlife_Refuge" id="mwAvw" rel="mw:WikiLink" title="Lake Ilo National Wildlife Refuge">Lake Ilo National Wildlife Refuge</a></b> in <a href="./North_Dakota" id="mwAv0" rel="mw:WikiLink" title="North Dakota">North Dakota</a> when lake waters were lowered on the lake in <a href="./1989" id="mwAv4" rel="mw:WikiLink" title="1989">1989</a> to reconstruct a <a href="./Dam" id="mwAv8" rel="mw:WikiLink" title="Dam">dam</a>?