Big Tujunga Dam
Big Tujunga Dam is a -high concrete arch dam in Los Angeles County , California , spanning Big Tujunga Canyon northeast of Sunland , in the foothills of the San Gabriel Mountains . 
<triplet> Big Tujunga Dam <subj> arch dam <obj> instance of <subj> Los Angeles County <obj> located in the administrative territorial entity <subj> Big Tujunga Canyon <obj> located on terrain feature <triplet> Los Angeles County <subj> California <obj> located in the administrative territorial entity <triplet> California <subj> Los Angeles County <obj> contains administrative territorial entity <triplet> San Gabriel Mountains <subj> Los Angeles County <obj> located in the administrative territorial entity