With technical advances and enthusiasm from policymakers, advocates say the time for next-generation geothermal has come.

A California man is in custody and faces charges of enticing a minor and dealing in materials harmful to minors.

Twice a year, I hike a favorite trail in Oregon’s Cascade Range. I have done this for over 20 years, timing my hikes for ...

Pando, a quaking aspen in Utah, is between 16,000 and 81,000 years old. New threats mean the world's largest tree is now in ...

Rocky Mountain, Arches and Glacier National Parks will all be implementing a reservation entry system for part of the year.