sentences:  Opened in August 2006, this area serves as a nesting ground for the least tern, a rare bird.Cane Ridge NWR is reportedly the easternmost nesting ground for the bird in the U.S.The Gibson Generating Station is connected to the power grid via five 345 kV and one 138 kV transmission lines to 79 Indiana counties including the Indianapolis area and a sixth 345 kV line running from GGS to Evansville and Henderson, owned by Vectren and Kenergy.