Scotch Run
... that brook trout are seven times as common in the lower reaches of Scotch Run as in its upper reaches?
... that <a href="./Brook_trout" id="mwCT0" rel="mw:WikiLink" title="Brook trout">brook trout</a> are seven times as common in the lower reaches of <b id="mwCT4"><a class="mw-redirect" href="./Scotch_Run_(Catawissa_Creek)" id="mwCT8" rel="mw:WikiLink" title="Scotch Run (Catawissa Creek)">Scotch Run</a></b> as in its upper reaches?