(D) Soil profile exposed by Verdugo Wash just above La Canada Boulevard Bridge over the wash showing stratifications as history of past floods in this area. This oak tree started to grow before the top layer of gravel was laid down, the tree being filled in to that depth. (Taken 25 ft. north of (C) ).
Bioscience, Natural Resources & Public Health Library
Note
Location: average distance Identification: named demonstration plot or section corner appears in photograph
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