Crab Run
... that Crab Run is listed as being impaired by abandoned mine drainage, even though no mining has been done in its watershed?
... that <b id="mwA4U"><a class="mw-redirect" href="./Crab_Run_(Mahanoy_Creek)" id="mwA4Y" rel="mw:WikiLink" title="Crab Run (Mahanoy Creek)">Crab Run</a></b> is listed as being impaired by <a href="./Abandoned_mine_drainage" id="mwA4c" rel="mw:WikiLink" title="Abandoned mine drainage">abandoned mine drainage</a>, even though no mining has been done in its watershed?