Colorado Sprout West of Idaho Spings, CO 2003 From Otto Knoll's Portfolio
Colorado Aspen near Craig, CO 2007 From Otto Knoll's Portfolio
Fall Leaves Chatauqua County, NY 2007 From Otto Knoll's Portfolio
Charred Saplings near Alpine, WY 2006 From Otto Knoll's Portfolio
Majestic Tree near Panama, NY 2009 From Otto Knoll's Portfolio
Thistles near Linesville, PA 2009 From Otto Knoll's Portfolio