出典:Wikipedia
出典:『Wikipedia』 (2011/01/26 07:54 UTC 版)
Optima Lake is a reservoir in Texas County, Oklahoma. The lake is located near the towns of Hardesty and Guymon in the Oklahoma Panhandle. The lake has never reached more than 5 percent of its design capacity, and now is effectively empty. Rapid declines in streamflow (related to large-scale pumping from the High Plains Aquifer) coincided with the completion of dam construction to make this lake a dramatic example of unanticipated environmental impacts.