Mahoning County

Mahoning County is located in NE Ohio on the Pennsylvania border and covers 424 square miles.  The county seat is Youngstown.  The topography ranges from hill to plain in the north and steep in the south with beech forests. Mahoning County has the Mahoning River, Pine Lake,  McKelvey Lake, Evans Lake, Lake Milton, Berlin Lake, Meander Creek Reservoir.

http://en.wikipedia.org/wiki/Mahoning_County,_Ohio

Portage County

Portage County, situated in NE Ohio, has 506 square miles of glaciated, rolling plateaus and beech forests.  The county seat is Ravenna. Portage County has the Cuyahoga River, Mogadore Reservoir, Lake Hodgson, Michael Kirwan Reservoir, Berlin Lake, Lake Pippen, Lake Rockwell, Aurora Pond.  Hiram College, Kent State University and Northeast Ohio Universities, College of Medicine are found here.

http://www.osuedc.org/profiles/profile_entrance.php?fips=39133

Trumbull County

Trumbull County, named for Connecticut Governor Jonathan Trumbull, is located in northeastern Ohio on the Pennsylvania border.  The county seat is Warren. There are 632 square miles, beech forests and the terrain ranges from rolling to plains.  Trumbull County has the Mahoning River, Grand River, Mosquito Creek, Meander Creek, Meander Creek Reservoir, Mosquito Creek Reservoir, Liberty Lake. 

http://en.wikipedia.org/wiki/Trumbull_County,_Ohio

Youngstown-Warren Metropolitan Area

The Youngstown/Warren area offers a rich variety of leisure activities including a premier metropolitan park, one of the finest collections of American art and one the the best collegiate football programs in the US.  Within a 90 minute drive are many more attractions, including 10 professional sports teams.

http://www.planetware.com/tourist-attractions/usa/ohio-us-oh-oh.htm