Tucson is part of a nationwide billboard campaign criticizing the Trump administration's cuts to National Parks.

When it comes to the desert Southwest, it doesn't get more fitting than this iconic decades-old Arizona snack that's actually ...

In Arizona, it sealed off the south ends of Organ Pipe Cactus National Monument and Buenos Aires National ... Doing so does not require the environmental reviews or endangered species protections ...

In Arizona, it sealed off the south ends of Organ Pipe Cactus National Monument and Buenos ... reviews or endangered species protections typical of major federal projects because Congress granted ...

The iconic saguaro cactus (Carnegiea gigantea), which can grow to heights ... Their diet diversifies beyond typical insectivores to include fruits from cacti and other desert plants, creating ...

Arizona is the 48th state in the United States, and is home to dramatic natural landscapes, rich history and bustling ...

Located in the verdant Verde Valley, Dead Horse Ranch is the versatile performer of Arizona’s state parks – it does a little ...

Eumelanin is the typical melanin type that causes black coloration ... growers because they can cause great damage to even big cacti plants like the saguaro or elephant cactus. Interestingly, much of ...

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 the ...