The township is in southwestern Crawford County and is bordered to the south by
Mercer County. It contains the unincorporated community of
Atlantic. According to the
United States Census Bureau, the township has a total area of , of which is land and , or 0.14%, is water. Northwestern Glaciated Plateau
Lowest Elevation: Crooked Creek at Pymatuning Marsh.
Highest Elevation: at a high point north of Jackson Run.
Major Rivers/Streams and Watersheds: Crooked Creek (forms western boundary of township), Conneaut Outlet, and
Sandy Creek Minor Rivers/Streams and Watersheds: •
Crooked Creek tributaries (western township): McDowell Run, Randolph Run and its tributary, Jackson Run •
Conneaut Outlet tributaries (northeastern township): Adsit Run
Lakes and Waterbodies: Dollar Lake and Lower Lake (both impoundments)
Biological Diversity Areas: McMillen Hollow BDA, Pymatuning Wetland Complex-Central BDA, Pymatuning Wetland Complex-South BDA
Landscape Conservation Area: Conneaut Marsh-Geneva Marsh LCA
Important Bird Areas: Conneaut Marsh-Geneva Marsh and Pymatuning-Hartstown
Important Mammal Areas: Pymatuning Wildlife Management Area and State Game Lands #214 ==Demographics==