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Five alcoves (rock shelters) in the Forty-Mile Canyon—Willow Gulch area of the Escalante River Basin in southeastern Utah yielded rich deposits of late Quaternary macrobotanical remains. The deposits were sampled and the contents identified in order to construct a chronology of vegetational change. Fourteen radiocarbon dates indicate that the fossils were deposited between 12,690 and 7510 yr B.P. (years before present). Ninety-one plant taxa were identified, 62 to species. Six species were common to all alcoves: Gambel oak (Quercus gambelii), box-elder (Acer negundo), prickly pear (Opuntia subgenus Platyopuntia), skunkbush (Rhus aromatica var. trilobata), serviceberry (Amelanchier utahensis), and Indian ricegrass...
This dataset displays the locations of Engelmann oak trees (Quercus engelmannii) in the Horsemill Road oak grove on the Crestridge Ecological Reserve, along with the size class of each occurrence. From 2009 data collected by CBI.

map background search result map search result map Engelmann Oak Size Classes, Crestridge, 2009 Engelmann Oak Size Classes, Crestridge, 2009