Hayfield Township, Crawford County, Pennsylvania

Carr Run is a 7.56 mi (12.17 km) long 3rd order tributary to Cussewago Creek in Crawford County, Pennsylvania.

Rundelltown Creek is a 7.69 mi (12.38 km) long 2nd order tributary to Carr Run in Crawford County, Pennsylvania.

Cussewago Township is a township in Crawford County, Pennsylvania, United States. The population was 1,430 at the 2020 census.

Dr. J. R. Mosier Office is a historic medical office located at Meadville, Crawford County, Pennsylvania. It was built about 1890, and is a small, clapboard clad frame building. It features a false front in front of a gable roof. The interior consists of three rooms furnished as they were in 1938; a waiting room, examination room, and pharmacy. The building was moved to the Baldwin-Reynolds House property in 1975 from its original location in the village of Littles Corners about 7 miles northwest of Meadville. The office is maintained as a medical museum by the Crawford County Historical Society.It was added to the National Register of Historic Places in 1976.

Penncrest School District is a midsized public school district located primarily in Crawford County, in Northwest Pennsylvania, with a small portion of the district's service area in adjacent Venango County. The school district encompasses several rural townships and boroughs. Its administrative offices are located in Hayfield Township outside Saegertown, Pennsylvania. Penncrest School District encompasses approximately 400 square miles. According to 2000 federal census data it serves a resident population of 24,780 people. In 2009, the district residents' per capita income was $16,413, while the median family income was $42,566 a year.The school district consists of community centered schools: three K-6 elementary schools and three 7–12 high schools. Its total enrollment is around 3,500 in 2009.

Summerhill Township is a township in Crawford County, Pennsylvania, United States. The population was 1,197 at the 2020 census, down from 1,236 at the 2010 census.

West Branch Cussewago Creek is a 5.55 mi (8.93 km) long 2nd order tributary to Cussewago Creek in Crawford and Erie Counties, Pennsylvania. This is the only stream of this name in the United States.

Spring Township is a township in Crawford County, Pennsylvania, United States. The population was 1,407 at the 2020 census, down from 1,548 at the 2010 census.

Conneautville is a borough in Crawford County, Pennsylvania, United States, situated along Conneaut Creek. The population was 736 at the 2020 census, down from 774 at the 2010 census.

Elk Creek Township is a township in Erie County, Pennsylvania, United States. The population was 1,785 at the 2020 census, down from 1,798 at the 2010 census.

Springboro is a borough in Crawford County, Pennsylvania, United States, located 35 miles southwest of Erie. The population was 376 at the 2020 census, down from 477 at the 2010 census.

Venango Township is a township in Crawford County, Pennsylvania, United States. The population was 941 at the 2020 census, down from 997 at the 2010 census.