Cogswell Dam
Cogswell Dam is a rockfill dam on the West Fork of the San Gabriel River in Los Angeles County , California . 
<triplet> Cogswell Dam <subj> Los Angeles County <obj> located in the administrative territorial entity <triplet> San Gabriel River <subj> Los Angeles County <obj> located in the administrative territorial entity <subj> California <obj> basin country <triplet> Los Angeles County <subj> California <obj> located in the administrative territorial entity <triplet> California <subj> Los Angeles County <obj> contains administrative territorial entity