Two bat boxes were constructed and installed at Hemlock Lake in December 2019 by Hunter Berg for Hunter's Eagle Scout project. Hunter also placed a bat box at Trusal Covered Bridge.
After Mahoning and Little Mahoning Creek travel through Indiana County they end up just over the county line in Armstrong County. The dam here was constructed in 1941. It's 926 feet in length and 162 feet in height. The dam was one of 13 dams constructed by the Army Corps to prevent flooding in Pittsburgh.