The mountain’s namesake granite was used to build Seattle’s iconic Smith Tower and is coveted by climbers. But its peak is made of a much older rock.

The river's dams drive electricity, flood control and commercial ships, and also helped turn the desert east of the Cascades into fruitful land.

North of Washington’s Gorge Amphitheatre are two massive lake-filled canyons, and geologists have chased clues about their origins for centuries.

Voters passed Initiative 2066 in November, but opponents, including King County and the city of Seattle, allege it violates the state constitution.

The famous flower fields are connected to mudflows that spilled from Washington’s Glacier Peak less than 15,000 years ago. Could it erupt again?

Washington and Oregon are two of six states where humans have tested positive for avian flu, but researchers suspect there are more unreported cases.

About 15,000 years ago, Washington was covered by a massive sheet of ice. As it melted, it helped shape the state into the landscapes we know today.

Mayor Lisa Brown is calling for another study to assess the risks of transporting 2,000 gallons of radioactive liquid from Hanford to Utah and Texas via I-90.

The small modular reactor could reestablish nuclear power as an alternative energy source, with the Washington-based company as its biggest investor.

Rake Force, an agroforestry company, employs servicemembers to help with land conservation and stewardship. For many, it is also a form of healing.

The Heritage Foundation’s blueprint proposes reclassifying radioactive waste as something less dangerous so it can be disposed of more cheaply.

As the daylight hours turn short, Puget Sound area residents recommend staying social, getting outdoors and learning to embrace the drear.

The cap-and-trade program, which 2117 aims to repeal, has been blamed for rising fuel costs, but gas prices have gone up and down since its inception.

The state is spending $100M to create 575 new charging sites, but one expert says electrification is out of reach without private sector buy-in.

Loza Farms in Yakima Valley found success through its relationships with brewers. Now a new generation wants to boost other POC-owned businesses.