Part of Ariz. Trail may be moved depending on Rosemont Mine

A stretch of the Arizona Trail, used by mountain bikers, above, could be shifted east if the Rosemont Mine enters operation.

Part of Ariz. Trail may be moved depending on Rosemont Mine

Rosemont Copper has agreed to pay for relocating a segment of the Arizona Trail to avoid impacts of its planned mine southeast of Tucson - but that would happen only if the mine plans win federal approval.

Rosemont gets key air permit from state

Rosemont Copper now has one of the most hotly contested permits - although not the last needed - for it to operate a mine southeast of Tucson.

New photos of jaguar taken SE of Tucson released by feds

Four photos of a jaguar roaming southeast of Tucson in the northern Santa Rita Mountains and one photo of an ocelot in the Huachuca Mountains were released today by the federal government.

County to drop appeal on Rosemont water permit

Pima County plans to drop its appeal of an April decision by the state's environmental agency approving a groundwater pollution prevention permit for the proposed Rosemont Mine.

Ariz. proposes issuing air permit for Rosemont Mine

State regulators are taking over the Rosemont Mine air quality permit from Pima County, the Arizona Department of Environmental Quality announced today.

Rosemont: Mine site is richer

The proposed Rosemont Mine's mineral deposit has about 34 percent more of its most common form of copper resources than previously thought, Rosemont Copper's Canadian-based parent company says.

Missing Boy Scout found safe in Santa Ritas

A search team was sent to find a 14-year-old Boy Scout lost in the Santa Rita Mountains Wednesday night.

Sonoran Institute director ready to move on after 22 years on job

Luther Propst

Sonoran Institute director ready to move on after 22 years on job

Donald Diamond sí, Rosemont Copper no.

Biz groups to ACC: Smooth way for Rosemont

The Arizona Corporation Commission is coming under strong pressure from business interest groups as it debates a proposed power line for the Rosemont Mine in the Santa Rita Mountains southeast of Tucson.

Rosemont light plan cuts glare, firm says

This is one of eight identical 16-inch telescopes at the Fred Lawrence Whipple Observatory atop Mount Hopkins, 13 miles southwest of the proposed Rosemont open-pit copper mine.

Rosemont light plan cuts glare, firm says

Rosemont Copper will dramatically scale back the brightness of its mine lighting system to try to protect dark skies and astronomy, company officials say.

New lighting plan for Rosemont Mine cuts glare, firm says

Rosemont Copper will dramatically scale back the brightness of its mine lighting system to try to protect dark skies and astronomy, company officials say.

Credible report of summer jaguar sighting near Tucson

A U.S. Department of Homeland Security helicopter pilot gave an account of a brief jaguar sighting last June in the Santa Rita Mountains south of Tucson, the Border Patrol said today.