Via Dunning Creek, it is part of the watershed of the Raystown Branch Juniata River, flowing to the Juniata River, the Susquehanna River, and Chesapeake Bay. Bobs Creek is 21.7 miles (34.9 km) long and is rated by American Whitewater as having a class I-III section for rafting and kayaking.
- Gertler, Edward. Keystone Canoeing, Seneca Press, 2004. ISBN 0-9749692-0-6
- U.S. Geological Survey. National Hydrography Dataset high-resolution flowline data. The National Map, accessed August 8, 2011
- "National Historic Landmarks & National Register of Historic Places in Pennsylvania" (Searchable database). CRGIS: Cultural Resources Geographic Information System. Note: This includes Susan M. Zacher and Barbara Hufnagel (undated). "National Register of Historic Places Inventory Nomination Form: Osterburg Covered Bridge" (PDF). Retrieved 2011-11-19.
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