Populus tremuloides, the quaking aspen ... their leaves (Figure 3). The dramatic visual show in the Rocky Mountains attracts many "leaf peepers" who find the brilliant gold, yellow, rose and ...

During autumn, the Aspen Nature Loop Trail transforms with vibrant yellow Aspen tree leaves, making it a highly underrated fall foliage must-see in Flagstaff. The Coconino National Forest is home ...

Aspen leaves typically appear heart-shaped ... In the fall, sassafras trees are known for their spectacular yellow, orange, crimson, burgundy and purple colors. The mighty oak is an essential ...

The USPS often releases new designs for stamps, such as the fishing-themed images on last week's new set of Forever Stamps, or stamps that commemorate public holidays, or the advent of a new year.