The waterfall on the southeast rim of the Berkeley Pit, near the Horseshoe Bend Water Treatment Plant as it appeared in 2009. The waterfall has stopped flowing since a Feb. 2013 slough from the Pit wall knocked out a pump used for Montana Resources copper precipitation plant. Prior to Feb. 2013, the waterfall was created by Pit water returning after Montana Resources had removed most of the copper in the water in its precipitation plant. Photo by Justin Ringsak.

The waterfall on the southeast rim of the Berkeley Pit, near the Horseshoe Bend Water Treatment Plant as it appeared in 2009. The waterfall has stopped flowing since a Feb. 2013 slough from the Pit wall knocked out a pump used for Montana Resources copper precipitation plant. Prior to Feb. 2013, the waterfall was created by Pit water returning after Montana Resources had removed most of the copper in the water in its precipitation plant. Photo by Justin Ringsak.

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