CRESTED BUTTE, Colo. — Aspen trees are the celebrities of a Colorado fall day. Think about it. People line the roads to take pictures with them. Instagram feeds from all over the state feature ...

It is the season of envy in Colorado. The all-too-brief time of year when we admire our forests in their finest states — awash in gold. It is, of course, aspen putting on the dazzling displays. This ...

Question: What’s the difference between a popple tree and an aspen? I hear the terms used interchangeably. Answer: Popple (or poplar) are common names for aspen trees because their genus is populus, ...