Assertion: lake's surface area | /r/CapableOf | vary at its highest levels
Facets:
value: in 1873
type: TEMPORAL
value: from about 2,400 square miles
type: LOCATION
Source sentences:
text: Its surface area has varied from about 2,400 square miles (6,200 square km) at its highest levels in 1873 and the mid-1980s to about 950 square miles (2,460 square km) at its lowest level in 1963.