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Little-known Tucson office, forced to consolidate with UA, sloughs off archives.
Rowley Mine is located in the Painted Rock Mining district.
Bolstered by Rio Nuevo's moves, local economy appears to be accelerating
Fire agate highly sought after gemstone among rock hounds.
Area faced water challenges.
Expo aims to help companies through industry slowdown.
The mine was named after a fort in southern India.
By 1956, 130,000 tons of ore was mined along with gold, silver, lead and zinc.
Max Delta Gold Mining Co. began the first underground production in 1913.
Addition of Oak Flat to national register won't stop copper mining there.
There are currently 246 historic mining districts across the state.
Use of the element molybdenum includes controlling chemical reaction speed.