Robert S. Finkelhor Nicholson Island PA 2009
Robert S. Finkelhor American Beech at Lower Lake Shaker Heights, OH 2008
Robert S. Finkelhor Nelson's Ledges Ohio 2011
Robert S. Finkelhor Buttermilk Falls OH 2010
Robert S. Finkelhor Hell's Hollow Creek PA 2010
Robert S. Finkelhor Doan Brook Beyond the Falls OH 2011
Robert S. Finkelhor Hell's Hollow Falls PA 2010
Robert S. Finkelhor Mosquito River MI 2008