The geology, fossils and human stories of Florissant Fossil Beds National Monument are part of a common geologic heritage.

Learn how to identify the aspen tree in the forest, as well as facts about the tree's habitat, range, silviculture, and management.

The project takes its name from Populus tremuloides – the quaking aspen, a tree that’s come to symbolize Colorado – reflecting the deep connection with nature that permeates the hotel’s design.

When I think of a "cheery" tree, I think of quaking aspens. Why cheery you might ask? While there are no leaves this time of year, find one in the spring and shake a branch… the leaves tremble ...

Quaking aspen (Populus tremuloides) and balsam poplar (Populus balsamifera) also have light-colored bark and can thrive at this northern edge. Some species with light bark have the added advantage of ...

You'll spot them in an iconic Colorado town with front-row views of the mountains, throughout most of New England, and even ...

DNA samples from one of the world’s largest and oldest plants — a quaking aspen tree (Populus tremuloides) in Utah called Pando — have helped researchers to determine its age and revealed ...

A “beautiful aspen tree” has been planted on a triangular piece of land in downtown Denver, Mayor Mike Johnston said during a ribbon-cutting ceremony at the new Populus Hotel. The hotel opened ...

This is our celebrated tree of fall, the quaking aspen so named for those leaves that flicker in the breeze, twinkle in the sun and stir our souls. Maybe you didn't know that about the name ...

For example, the bark of young quaking aspen may be grayish-white but as the tree ages, the bark, especially around the base, becomes darker and furrowed and even a bit “warty.” ...