NAU Sustainable Communities Program

A historic Chino Valley farm that supported Fred Harvey’s railroad dining empire over a century ago is on track to become part of a new state park.

Mammoth bones found on the Colorado Plateau may shift the timeline of when humans first reached the Americas. Archaeologists are debating what the discovery means.

The Clovis people hunted mammoths and other Ice Age giants more than 13,000 years ago. Archaeologists are uncovering what happened when those animals disappeared.

The Clovis people hunted mammoths across the Southwest more than 13,000 years ago. Archaeologists are still uncovering what their tools and camps reveal.

Some spiders don’t just spin webs — they listen through them. Researchers found that orb-weavers can sense vibrations on their silk to detect prey and danger.

On a walk through the woods, you might see a strange-looking growth up in the branches of a tree. It’s called a witches’ broom.

Fire and drought are transforming western forests — and the Mexican Spotted Owl is adapting to survive.

Biochar, made from burned plant material, is giving new life to waste — and helping fight climate change in the process.

The 64-mile steam train service from Williams to the South Rim of the Grand Canyon began in 1901, when a ticket cost $3.95. An updated, eco-friendly version is still in use today.

New research in New Mexico shows that black bears thrive in forests renewed by fire — especially when it means more berries, acorns and cover.