Nahanni National Park, NWT, Canada (IMAGE) Purdue University Caption Unvegetated terminal moraine from Nahanni National Park, NWT, Canada dating to the end of the last ice age (about 13,800 years ago). Credit Photo by Brian Menounos, University of Northern British Columbia Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.