South Fork of Ten Mile Creek — is a 4th order stream that originates in Center Township, Greene County and flows northeast until it empties into Ten Mile Creek on the northeast boarder of Morgan Township. It has a drainage area of 199 square miles. The PADEP has classified this stream under Chapter 93 Water Quality Standards as a High Quality WWF (HQ-WWF) from its source to Browns Run and the remaining length as a WWF. The HQ designation means that this stream has excellent quality waters and contains environmental or other features that require special water quality protection. No TMDLs have been identified for South Fork Ten mile Creek (PADEP, 2005). The following tributaries to South Fork Ten Mile Creek are designated HQ-WWF: Browns Creek, Pursley Creek, Clear Run, Rush Run, Lightner Run, and a few unnamed tributaries.

In April of 2004, PA Cleanways supported a "clean-up" of Browns Creek. Trash was removed from the channel and the riparian area. In addition, native vegetation was planted in the riparian zone to restore quality to the stream.