Each day, Hunter Callahan, a 10-year-old fourth-grader, shows up adults in the Roaring Fork Valley who drive to work.

Callahan, who rides his bike to school every day, will receive an environmental award from Aspen Mayor Helen Klanderud during Earth Day festivities Saturday at the Aspen Center for Environmental Studies.

Callahan didn't really decide to start biking every day, it just kind of happened.

The ride from his house at 205 S. Third St. is little more than two miles from Aspen Elementary School. He said it takes him 10 minutes in the summer and 15 to 20 when there's snow on the ground.

"In the winter I wear snow pants and a big, heavy ski jacket," Callahan said. Gloves and snow boots are also key, he said.

He said he's taken a few diggers in his time, but he's perfected the art of not letting the bike fall on him.

"When I'm falling, I let go of the bike and jump off," he said.

Generally, Callahan isn't into doing crazy tricks, but he has a few sweet jumps in his driveway that he'll hit on a nice day when he's out riding around with his siblings.

"Always a helmet, though," said his mom, Kathleen, "right?"

Hunter comes from an athletic family. His dad, John, was a 1992 Olympian and currently heads up the Aspen Valley Ski and Snowboard Club nordic team. Kathleen said family outings often include hiking, biking or skiing.

"His dad bikes to work," Kathleen said, "I walk to work, so we hopefully set some good examples."

Hunter seemed a little distracted during a recent interview. Perhaps it was because it was difficult to find the time after school and before chess club, which he likes. He's a busy guy.

Though it might just have been that the pressure of media attention is starting to strain just a little bit. He was interviewed this morning on the radio. He fit The Aspen Times into the schedule - barely.

"It's getting to me," he said.

Joel Stonington's e-mail address is jstonington@aspentimes.com