Assertion: river's tributary | /r/CapableOf | flow in the san gabriel mountains
Facets:
value: from the angeles national forest
type: LOCATION
Source sentences:
text: Paralleling U.S. Highway 101 briefly, it then veers southeast, away from the highway, and receives from the left the Tujunga Wash, one of its largest tributaries, which flows southwest and south from the Angeles National Forest in the San Gabriel Mountains.