Foxburg is a borough in Clarion County, Pennsylvania, United States. It is located along the east bank of the Allegheny River, about 2 miles (3 km) north of the mouth of the Clarion River. As of the 2020 census it had a population of 181.

Eau Claire is a borough in Butler County, Pennsylvania, United States. The population was 316 at the 2010 census. The name means "Clear Water" in French, and is pronounced as the French pronunciation.