Dowdle Folk Art Dowdle Doodles Rocky Mountain National Park Coloring Book Dowdle Puzzles and books are considered "Green" and 100% recyclable. The packaging included. Dowdle Puzzles and books, and packaging are fully produced in the USA. All materials, packaging, and shipping containers. Dowdle Puzzles and books are child friendly completed lead free. This high standard is certified by our producers. Each puzzle is drawn and painted from an actual painting created by Artist Eric Dowdle. National parks series with Rocky Mountain National Parks Cover.