Assertion: lake trout's level | /r/CapableOf | drain bottom center
Facets:
value: in the aerial photo
type: LOCATION
value: through the valley
type: LOCATION
Source sentences:
text: At one time, probably when the valley was partially filled by a glacier, the level of Flathead Lake was about 500 feet (150 m) higher and drained through the valley west of Elmo, Montana, which is at the end of Big Arm Bay, bottom center in the aerial photo above.