Livestreamed on the Museum of Northern Arizona Facebook page The Colorado River carved the primary path through Grand Canyon, but the canyon is also sustained by more than 1,400 springs, one of the highest concentrations of springs in the United States. Many of these springs function as islands of habitat, supporting unique, endangered, and rare species. MNA Curator of Ecology Dr. Larry Stevens is the Director of the Springs Stewardship Institute, a global initiative to survey, rehabilitate, and steward spring systems. He has studied springs in the Grand Canyon for 20 years. In the fourth presentation exploring and sharing MNA's ongoing research and connections to the Grand Canyon, Dr. Stevens talks about the many springs and their unique and important role in the Grand Canyon ecosystem. Previous Grand Canyon Talks are found among MNA videos in the Grand Canyon playlist and also on the Museum YouTube channel.