The free event at the west end of El Tiro Road will last from 9 a.m. to 3 p.m. and feature four guest speakers, about a dozen ...

An Arizona Republican wants to give the Border Patrol unfettered access across official wilderness, and potential wilderness, ...

If you want to take an epic road trip and see some of the best national parks in the United States, we've got you covered on ...

There’s something truly marvelous about visiting a national park. It’s a connection to something much larger than ourselves, ...

U.S. Raúl Grijalva, an Arizona Democrat who was a fierce advocate for national parks, passed away Thursday from complications related to cancer treatments. He was 77.

Longtime Tucson Congressman Raúl M. Grijalva, who inspired generations of environmental and inner-city activists in a ...

This quiet Arizona town is the perfect home base for exploring the Grand Canyon and nearby natural wonders. Here's why it ...

Trump ordered the largest reversal of land monument protections in American history in 2017 when he signed an order to reduce ...

Though Grijalva spent decades of his life committed to public service, Tilousi believes his biggest accomplishment came late ...

The federal government owns more than 640 million acres of public land in the United States, including more than a third of land in Arizona ... Plus, some 1,000 National Park Service employees ...

Tucson Democrat dedicated half-century of his life to public service. Grijalva made headlines in 2010 after call to boycott ...

Pinyon Plain uranium mine has resumed trucking uranium ore near the Grand Canyon across the Navajo Nation to White Mesa.