GRAND CANYON NATIONAL PARK, Ariz. (AP) — Grand Canyon National Park crews on Monday will begin a multiday project that will shut down for repairs the leaking cross-canyon pipeline that carries...

BULLHEAD CITY, Ariz. (AP) — Construction bids are being taken for a proposed second bridge over the Colorado River that would connect Bullhead City, Arizona and Laughlin, Nevada.

Sunday, Jan. 17

On this date in 1805, Spanish troops, commanded by Lt. Antonio Narbona, invaded Canyon de Chelly, killing 93 Navajo warriors and 45 women and children. The bones of the slain...

LAS VEGAS (AP) — A Nevada man who blocked the Colorado River bridge near Hoover Dam with a homemade armored vehicle and assault-style rifles in 2018 has been sentenced to seven years and nine...

GRAND CANYON NATIONAL PARK, Ariz. (AP) — Grand Canyon National Park officials say a 23-year-old Phoenix man died when he fell approximately 80 feet (24 meters) while hiking on a trail below the...

LAKE HAVASU CITY, Ariz. (AP) — The Colorado River Indian Tribes is proposing a federal law to allow it to lease water rights in Arizona, a move that could aid the state's response to the drought....

Sunday, Nov. 29

On this date in 1877, the first Mormon settlers arrived on the San Pedro River to found what is now the town of St. David.

Sunday, Nov. 15

On this date in 1885, Phelps-Dodge partners bought up competing mining claims in Bisbee, creating the Copper Queen Consolidated Mining Company.

DURANGO, Colo. (AP) — A decades-long effort to restore the Colorado River cutthroat trout to the upper reaches of Hermosa Creek has been completed, resulting in the largest continuous stretch of...

PAGE, Ariz. (AP) — The body of an Arizona man has been recovered after he reportedly fell off a cliff overlooking the Colorado River near the Glen Canyon Dam Overlook, authorities said Tuesday....

HOMESTAKE CREEK, Colo. (AP) — A hundred miles from Colorado’s Front Range house-building boom, field scientist Delia Malone dug her fingers into spongy high-mountain wetlands at the edge of the...

LAS VEGAS (AP) — Extremely strong winds whipped up weather hazards Tuesday in Las Vegas and other parts of Nevada.

Nearly 4,500 NV Energy customers lost power shortly before 8 a.m., the Las...

PHOENIX (AP) — The Arizona Department of Water Resources endorsed a company’s proposal to sell water from farmland near the Colorado River to a a fast-growing Phoenix suburb despite complaints of...

GRAND CANYON NATIONAL PARK, Ariz. (AP) — The National Park Service has closed a bridge in the Grand Canyon that hikers use to cross the Colorado River.

STEAMBOAT SPRINGS, Colo. (AP) — The primary part of the Yampa River in northern Colorado is under water usage restrictions for only the second time ever.

Sunday, Aug. 30

On this date in 1881, troops from Fort Apache, under the command of Gen. Eugene A. Carr, arrested the Apache Medicine Man Noch-ay-del-klinne in his camp at Clibicue Creek,...

GRAND CANYON NATIONAL PARK, Ariz. (AP) — A bat collected along the Colorado River in Grand Canyon National Park has tested positive for rabies, authorities said.

ABIQUIÚ, N.M. (AP) — A newly passed U.S. House bill may allow Abiquiú Lake to store a greater volume of water from a wider range of sources.

The Santa Fe New Mexican reports a provision in a...

LAKE HAVASU CITY, Ariz. (AP) — Mohave County Sheriff’s officials on Monday released the names of two California men who died after a boating accident in western Arizona at the mouth of the...

LAKE HAVASU CITY, Ariz. (AP) — Two men are dead after a boating accident in western Arizona at the mouth of the Colorado River, authorities said Saturday.

BULLHEAD CITY, Ariz. (AP) — All beaches, boat launches and associated parks in Bullhead City will be closed on weekends through Labor Day because of the coronavirus pandemic, according to Mayor...

FLAGSTAFF, Ariz. (AP) — Arizona is getting a jump start on what will be a yearslong process to address a dwindling but key water source in the U.S. West.

DURANGO, Colo. (AP) — Authorities have identified a man whose body was found in the Animas River in southwestern Colorado.

The Durango Herald reports rafters on a commercial float spotted...

GRAND CANYON NATIONAL PARK, Ariz. (AP) — Grand Canyon National Park rangers had to rescue e a river runner and several hikers who were overcome by the heat last weekend.

Sunday, June 21

On this date in 1860, the original Baca Float Grants were made by act of Congress.

LAKE HAVASU CITY, Ariz. (AP) — One person was killed and a second critically injured in a nearly head-on nighttime collision between two motorboats on Lake Havasu along the Colorado River,...

TUBA CITY, Ariz. (AP) — Federal regulators have accepted a Phoenix-based company's application for a preliminary permit to look further into building hydro-powered dams on tribal land.

DENVER (AP) — Rescue crews are searching for a man who was reported missing after he was last seen on an inner tube on the Colorado River.

PHOENIX (AP) — The Salvation Army activated 12 heat-relief stations across metro Phoenix on Tuesday as forecasters warned of excessive heat that could be dangerous.

FLAGSTAFF, Ariz. (AP) — A Phoenix-based company that was eyeing the Little Colorado River for power generation is floating a new proposal that would rely on groundwater rather than surface water...

YUMA, Ariz. (AP) — A man jet skiing over the weekend on the Colorado River in Arizona was killed after he collided with a boat.

The Yuma County Sheriff's Office identified the jet-skier as...

GRAND JUNCTION, Colo. (AP) — Authorities have released the name of a man who drowned after falling from his boat during a fishing trip in western Colorado.

GRAND JUNCTION, Colo. (AP) — A man has drowned in the Colorado River after he fell from a boat while fishing near Grand Avenue Bridge east of Grand Junction, authorities said.

YUMA, Ariz. (AP) — Border Patrol agents in Yuma are being credited with rescuing three immigrants from a canal adjacent to the Colorado River.

Sunday, March 29

On this date in 1885, Geronimo and 20 of his warriors who had surrendered to Gen. George Crook returned to the warpath after escaping from U.S. troops.

Sunday, March 22

On this date in 1875, the Silver King Mine was discovered in the Pinal Mountains. The first ore taken from the mine was assessed at $4,300 per ton.

LAKE HAVASU CITY, Ariz. (AP) — Lake Havasu City officials plan to end scheduled closures of London Bridge for special events, saying they don't want to block vehicle travel between an island and...

GRAND CANYON NATIONAL PARK, Ariz. (AP) — The Grand Canyon is accepting applications in a highly competitive lottery for non-commercial rafting trips on the Colorado River.

GRAND CANYON NATIONAL PARK, Ariz. (AP) — An amber-colored snail found in Arizona and Utah could be losing it status as an endangered species.

FLAGSTAFF, Ariz. (AP) — An endangered fish found in the Colorado River basin is on the upswing, federal officials said Tuesday as they proposed reclassifying the humpback chub as...