Mahanoy Creek
... that there are at least 35 sources of acid mine drainage in the Mahanoy Creek watershed?
... that there are at least 35 sources of <a href="./Acid_mine_drainage" id="mwCH0" rel="mw:WikiLink" title="Acid mine drainage">acid mine drainage</a> in the <b id="mwCH4"><a href="./Mahanoy_Creek" id="mwCH8" rel="mw:WikiLink" title="Mahanoy Creek">Mahanoy Creek</a></b> watershed?