The Bureau of Reclamation will pay $86.7 million toward Tucson's new water treatment plant, which will stretch the city's supplies.

In response to a lawsuit from conservation groups, the Federal Highway Administration and Arizona Department of Transportation have agreed to halt planning activities and reevaluate their approval of Interstate 11.

The Bureau of Reclamation today announced it is awarding $388 million in grants for Upper Colorado River Basin water projects. Administered via the Bucket 2 Ecosystem program, the grants will support 42 projects that will restore struggling rivers,

A Tucson man is dead after a boating accident at Lake Talkalai near the San Carlos Reservation.His grieving family is hoping to use the tragedy to emphasize water safety for southern Arizona families.

Foes of a plan to construct a new interstate highway — including a segment that could go through environmentally sensitive portions of Pima County — have won a

The Sonoran Desert, known for its arid condition, is equally unique and has been dubbed the “lushest desert on earth” because evaporation from the Gulf of California provides moisture and rain. Stingrays are among the many species flowing through this sea in a desert landscape.

The Tohono O’odham Nation signed a co-stewardship agreement with the U.S. Bureau of Land Management for federal lands with deep cultural and religious ties for the tribal nation.

The Center for Biological Diversity and the Patagonia Area Resource Alliance say federal regulators failed to review a petition against Hermosa Mine.

The investment supports the efforts of the Colorado River District, the state of Colorado, and a coalition of West Slope governments and water users.

Tucson, AZ, United States? Know about Tucson International Airport in detail. Find out the location of Tucson International Airport on United States map and also find out airports near to Tucson, AZ. This airport locator is a very useful tool for travelers ...

S.H. Gould established the mine in 1906 but declared bankruptcy by 1915. The 350 foot-deep-shaft reportedly produced 45,000 pounds of copper, valued at $9,000 or $281,000 today. The mine has not been active since the 1950s and the area became part of Saguaro National Monument in 1963.

The Arizona House of Representatives is the lower chamber of the Arizona State Legislature. Alongside the Arizona State Senate, it forms the legislative branch of the Arizona state government and works alongside the governor of Arizona to create laws and ...