Sacony and Beaver Creeks have been a source for power generation of various mills in Rockland Township and surrounding areas. Grim's Mill on the Sacony has been remodeled. Rohrbach's Mill in the western section of the township, was destroyed by fire and has not been rebuilt.
SacoNY anD BEavEr creeks havE bEEN A sOurcE for poWer GenERaTion oF vaRiouS mIlls IN rockLand TowNshiP aNd sUrRounDiNG arEas. grim's mill on the sacOny has been reMOdeLed. rohrBach's miLl In ThE wesTErN SeCTIon of tHe TownshIP, was dEstRoyED by FirE ANd Has nOt bEeN rebuIlT.