If the contamination worsens, wildflowers could disappear and algae could bloom in alpine lakes, changing the waters’ look ...

From sea to shining sea, fall is when many national parks in the United States are at their best. Here are our favorite U.S.

Temperatures are expected to drop this weekend in Colorado, with several inches of snow forecast for mountainous regions.

When is the earliest North Jersey has seen its first snow? The latest? How about snow in October? We look at data, including ...

An early-season storm system moved across California Monday into Tuesday, frosting the highest peaks of California's Sierra ...

An early-season storm is poised to blast California's Sierra Nevada with cold air and dust its highest peaks with light snow.

Yosemite National Park will temporarily close the Tioga Road entrance on Wednesday due to forecast snow, with a reopening ...

including Yosemite National Park. Snow levels will drop to 8,000 feet, likely bringing measurable snow to parts of the Sierra Nevada. A Winter Weather Advisory is in effect for a swath of the ...

The calendar still says summer, but winter is coming early to parts of California’s Sierra Nevada this week, including ...

A Winter Weather Advisory is in effect for a swath of the mountains, including those inside Yosemite National Park. Tioga Pass and Tuolumne Meadows could see up to 3 inches of snow, with even some ...

The National Weather Service has issued a Winter Weather Advisory for Yosemite National Park (outside of the Valley floor), ...