2012 | 11 | Puerto Rico | El Yunque National Forest | | A Puerto Rican parrot and a coqui tree frog | January 23, 2012 (January 17, 1903) | 25,000,000 | 25,800,000 | — | 50,800,000 |
12 | New Mexico | Chaco Culture National Historical Park | | Two elevated kivas that are part of the Chetro Ketl complex | April 2, 2012 (March 11, 1907) | 22,000,000 | 22,000,000 | | 44,000,000 |
13 | Maine | Acadia National Park | | The Bass Harbor Head Lighthouse. ---------------------- Acadia | June 11, 2012 (July 8, 1916) | 21,606,000 | 24,800,000 | — | 46,406,000 |
14 | Hawaii | Hawaii Volcanoes National Park | | Kīlauea | August 27, 2012 (August 1, 1916) | 78,600,000 | 46,200,000 | — | 124,800,000 |
15 | Alaska | Denali National Park and Preserve | | A Dall sheep with Denali in the background | November 5, 2012 (February 26, 1917) | 166,600,000 | 135,400,000 | — | 302,000,000 |