A winter weather advisory has been issued by the National Weather Service until 5 p.m. April 18, with snow expected above 7,000 feet.

When crossing the Colorado, full of sandbars, the boatman would call out "mark twain" (two feet), grabbing the travelers' ...

Saguaro cactuses are Arizona's towering icons. However, only one holds the record for being the tallest ever measured. Here's ...

Saguaro cactuses tower over Arizona's desert landscape, each year inching higher and higher for hundreds of years as they watch time pass. While they can grow to unique heights, one cactus holds ...

A winter weather advisory has been issued by the National Weather Service until 5 p.m. April 18, with snow expected above 7,000 feet.

Yarrow is a low-maintenance flower, native to many areas of the United States. This hardy plant pairs well with succulents in ...

They are called sky islands. Tall mountains surrounded by a “sea” of desert, yet, almost literally, not a drop of water to be ...