Brady Township, Butler County, Pennsylvania

The Allegheny Plateau ( AL-ig-AY-nee) is a large dissected plateau area of the Appalachian Mountains in western and central New York, northern and western Pennsylvania, northern and western West Virginia, and eastern Ohio. It is divided into the unglaciated Allegheny Plateau and the glaciated Allegheny Plateau. The plateau extends southward into western West Virginia, eastern Kentucky, and Tennessee, where it is instead called the Cumberland Plateau. The plateau terminates in the east at the Allegheny Mountains, which are the highest ridges just west of the Allegheny Front. The Front extends from central Pennsylvania through Maryland and into eastern West Virginia. The plateau is bordered on the west by glacial till plains in the north, generally north of the Ohio River, and the Bluegrass Region south of the Ohio River. Elevations vary greatly. In the glaciated Allegheny Plateau, relief may only reach one hundred feet or less. In the unglaciated Allegheny Plateau in southeastern Ohio and westernmost West Virginia, relief is typically in the range of two hundred to four hundred feet. Absolute highest elevations in this area are often in the range of 900 to 1,500 feet (270 to 460 m). By the Allegheny Front, however, elevations may reach well over 4,000 feet (1,200 m), with relief of up to 2,000 feet (610 m).

Jennings Environmental Education Center is a 300-acre (121 ha) Pennsylvania state park in Brady Township, Butler County, Pennsylvania in the United States. It is 12 miles (19 km) north of Butler at the intersection of Pennsylvania Route 8 and Pennsylvania Route 528. The center contains a relict prairie of 20 acres (8.1 ha), the only publicly protected prairie ecosystem in Pennsylvania. Big Run, a tributary of Slippery Rock Creek, flows through Jennings Environmental Education Center, and it shares a border with Moraine State Park to the south. Jennings Environmental Education Center was chosen by the Pennsylvania Department of Conservation and Natural Resources (DCNR) and its Bureau of Parks as one of "25 Must-See Pennsylvania State Parks".

Glade Run is a small tributary of Slippery Rock Creek in western Pennsylvania. The stream rises in northwestern Butler County and flows northwest entering Slippery Rock Creek at Slippery Rock Park, Pennsylvania. The watershed is roughly 42% agricultural, 51% forested and the rest is other uses.

Unionville is a census-designated place located in Center Township, Butler County, in the U.S. state of Pennsylvania. As of the 2010 census, the population was 962.Unionville is located in the northwestern corner of Center Township and is bordered to the southwest by the Shanor-Northvue CDP, to the north by Clay Township and to the west by Franklin Township. Pennsylvania Route 8 passes through the community, leading south 6 miles (10 km) to Butler, the county seat, and north 14 miles (23 km) to Harrisville.

Big Run is a small tributary of Slippery Rock Creek in western Pennsylvania. The stream rises in northwestern Butler County and flows northwest entering Slippery Rock Creek just east of Crolls Mills, Pennsylvania. The watershed is roughly 26% agricultural, 65% forested and the rest is other uses.

Euclid is an unincorporated community in Butler County, in the U.S. state of Pennsylvania.

Long Run is a small tributary of Slippery Rock Creek in western Pennsylvania. The stream rises in northwestern Butler County and flows south entering Slippery Rock Creek at Camp Bucoco, Pennsylvania. The watershed is roughly 49% agricultural, 44% forested and the rest is other uses.

Clay Township is a township in Butler County, Pennsylvania, United States. The population was 2,547 at the 2020 census.

Franklin Township is a township in Butler County, Pennsylvania, United States. The population was 2,596 at the 2020 census.

West Liberty is a borough in Butler County, Pennsylvania, United States. The population was 343 at the 2010 census.

South Branch Slippery Rock Creek is a main tributary of Slippery Rock Creek in western Pennsylvania. The stream rises in northwestern Butler County and flows northwest entering Slippery Rock Creek near Bovard, Pennsylvania. The watershed is roughly 25% agricultural, 67% forested and the rest is other uses.

McDonald Run is a 3.07 mi (4.94 km) long tributary to Slippery Rock Creek that rises near Forestville in Butler County, Pennsylvania and flows south to meet Slippery Rock Creek near Branchton.