geography
... that glaciation in Wisconsin 17 thousand years ago helped create its unique geography?
... that <a href="./Wisconsin_glaciation" id="mwBEM" rel="mw:WikiLink" title="Wisconsin glaciation">glaciation in Wisconsin</a> 17 thousand years ago helped create its unique <b id="mwBEQ"><a href="./Geography_of_Wisconsin" id="mwBEU" rel="mw:WikiLink" title="Geography of Wisconsin">geography</a></b>?