Ore deposits (5)
I believe the answer is:
lodes
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">ore deposits</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for lodes that I've seen before include "Veins of metal ore" , "Mineral veins" , "Deposit of valuable ores" , "Metal containers" , "Pockets of metal ore" .)