Lassen Volcanic National Park, California - Diamond Peak (9x12 Art Print, Wall Decor Travel Poster) Lassen Volcanic National Park, California - Diamond Peak (9x12 Art Print, Wall Decor Travel Poster) Standard 9x12 print, ready for framing Printed in the USA on heavy stock paper using a high-end digital printing press Perfect for your home, office, or a gift Browse thousands of other art images available, click Lantern Press, above