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This rather close up view of Portland No. 1 Mine with the Portland No. 2 in the background on top of the hill, tells the story quite well on how big a mine can grow.
There is quite a lot of dump materials here, hold up by the massive crib walls seen, lot of structures, ore houses built in stages and enlarged and so on.
A Short Line branch to Ajax Mine runs along the large cribbing seen in the background supporting large dumps around Portland No. 2.