The loss of whitebark pine across the Greater Yellowstone Ecosystem has been of great concern to environmentalists, so there’s an effort to restore pine in coming years.
Read More »White Pines Heavily Impacted by Beetles: NRDC

Damage among Yellowstone National Park's crucial white-pine trees is higher than anticipated, according to the Natural Resources Defense Council (NRDC), as beetles wreak havoc on this crucial source of food for the region's grizzlies.
Read More »
Yellowstone Insider Your Complete Guide to America's First National Park