National Park Service LogoU.S. Department of the InteriorNational Park ServiceNational Park Service
National Park Service:  U.S. Department of the InteriorNational Park Service Arrowhead
Grand Teton National Park & John D. Rockefeller, Jr. Memorial ParkwayElk in the snow on the National Elk Refuge in Jackson, Wyoming.
view map
text size:largestlargernormal
printer friendly
Grand Teton National Park & John D. Rockefeller, Jr. Memorial Parkway
Fire Stories
Aspen tree bark close-up  

Did You Know?
Did you know that the bark on Aspen trees looks green because it contains chlorophyll? Aspen bark is photosynthetic, a process that allows a plant to make energy from the sun, and helps the tree flourish during the short growing season.

Last Updated: March 17, 2008 at 13:52 EST