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UEI-01-06-01


overview of the central pond and stone wall, with the St. John's Bridge...
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UEI-01-06-02


River of Rock detail that leads to the central pond with St. John's Brid...
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UEI-01-06-03


Portland Water Pollution Control Laboratory with "viewing dock" and pond...
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UEI-01-06-04


detail of circular stone wall and marsh environment with the Willamette...
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UEI-01-06-05


detail of stone wall and pond
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UEI-01-06-06


detail of "River of Rock" where it meets the central pond