 The source of Plunketts Creek is 1440 ft ( 439 m ) above sea level , northwest of the unincorporated village of Hillsgrove and just south of the Loyalsock State Forest in Hillsgrove Township , Sullivan County . The source is a pond just north of Pennsylvania Route <unk> ( the road between the villages of Proctor and Hillsgrove ) and Plunketts Creek crosses the road twice , then receives two unnamed tributaries on the right bank as it flows generally southwest about 1 @.@ 5 miles ( 2 @.@ 4 km ) to the Lycoming County line . 
