There are roughly dozens of shades of black, gray, brown, and green river rock to choose from, and they’re usually up to 3 inches in diameter. River rock can also feature stripes, striations ...

The quarter-mile (400-meter) tunnel goes under Castle Rock, a sandstone formation that stands over Green River, the Sweetwater County seat of 11,500 people.

The crash happened in the westbound tunnel through the rock ridge adjacent to Green River, igniting a fire inside A fire at the scene caused vehicle tires to explode from the heat, according to ...

Credit: AP The crash took place in the westbound tube of the twin tunnel under Castle Rock, a sandstone formation that looms over the town of Green River in the state’s southwest region.

The Wyoming Legislature agreed to set aside $15 million to inspect and repair I-80 tunnels near Green River after a ...