Robert E. Lee Mine (Bob Lee Mine; Bob Lee and Widow Mine), Tres de Mayo Mine group, Palmetto District, Fresno Canyon, Patagonia Mountains, Santa Cruz County, Arizona, USAi
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Latitude & Longitude (WGS84):
31° 26' 58'' North , 110° 48' 9'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Kino Springs | 136 (2011) | 9.6km |
| Beyerville | 177 (2011) | 9.7km |
| Patagonia | 890 (2017) | 10.9km |
| Rio Rico | 18,962 (2011) | 16.7km |
| Nogales | 20,252 (2017) | 17.4km |
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
Local clubs are the best way to get access to collecting localities
| Club | Location | Distance |
|---|---|---|
| Huachuca Mineral and Gem Club | Sierra Vista, Arizona | 49km |
A Cu-Ag-Au-Pb-Zn-Mn-Mo-V mine located in the SW ¼ sec. 3 & the N ½ sec. 10, T23S, R15E, at 4,292 feet of altitude. Owned at times, or in part, by Stockton; Backman & Merritt Mines Co.; Monarch Mining & Milling Co.; Taft Mining & Exploration Co.; Melville Syndicate; Newcomer; and, Cummings. Coordinates updated February, 2008, using a hand held Garmin GPS unit (at the adit portal) by Ronald Deblois.
Mineralization is lenses of argentiferous galena with minor chalcopyrite and sphalerite in a quartz, psilomelane, and gouge gangue in fissure-zone veins, oxidized to cerussite, acanthite, and rich chlorargyrite pockets. The wall rock is strongly sheared and fractured Precambrian rock intruded by Jurassic granite. A major fault passes through the area and a Northeast-striking fracture zone contains weak, oxidized sulfide mineralization. Psilomelane often contains lead and silver values.
Workings include an adit at the bottom of a wash. There are no additional workings to surface. The adit proceeds straight in about 100 feet (30 meters), then spreads out into several additional tunnels trending in the same general direction. The low, narrow, arched adit is evidence of the fact that it was opened up and worked by Mexicans prior to 1880 but mainly from 1910 through 1942, producing in total some 200 tons of ore averaging about 70 oz. Ag/T, 25% Pb and minor Cu & Au.
CAUTION: This mine was found to contain a skunk, wild pig droppings and a resident rattlesnake (2008).
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| ⓘ Anglesite Formula: PbSO4 References: |
| ⓘ Chrysocolla Formula: Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 References: |
| ⓘ Descloizite Formula: PbZn(VO4)(OH) References: |
| ⓘ Galena Formula: PbS References: |
| ⓘ Goethite Formula: Fe3+O(OH) References: |
| ⓘ Hematite Formula: Fe2O3 References: |
| ⓘ 'Limonite' References: |
| ⓘ 'Manganese Oxides' References: |
| ⓘ Mimetite Formula: Pb5(AsO4)3Cl References: |
| ⓘ 'Mimetite-Vanadinite Series' References: |
| ⓘ Phosphohedyphane Formula: Ca2Pb3(PO4)3Cl References: |
| ⓘ 'Psilomelane' References: |
| ⓘ Pyrolusite Formula: Mn4+O2 References: |
| ⓘ Pyromorphite Formula: Pb5(PO4)3Cl References: |
| ⓘ Quartz Formula: SiO2 References: |
| ⓘ Quartz var. Rock Crystal Formula: SiO2 References: |
| ⓘ Vanadinite Formula: Pb5(VO4)3Cl |
| ⓘ 'Wad' |
| ⓘ Wulfenite Formula: Pb(MoO4) |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| ⓘ | Galena | 2.CD.10 | PbS |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Goethite | 4.00. | Fe3+O(OH) |
| ⓘ | Hematite | 4.CB.05 | Fe2O3 |
| ⓘ | Quartz | 4.DA.05 | SiO2 |
| ⓘ | var. Rock Crystal | 4.DA.05 | SiO2 |
| ⓘ | Pyrolusite | 4.DB.05 | Mn4+O2 |
| Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
| ⓘ | Anglesite | 7.AD.35 | PbSO4 |
| ⓘ | Wulfenite | 7.GA.05 | Pb(MoO4) |
| Group 8 - Phosphates, Arsenates and Vanadates | |||
| ⓘ | Descloizite | 8.BH.40 | PbZn(VO4)(OH) |
| ⓘ | Mimetite | 8.BN.05 | Pb5(AsO4)3Cl |
| ⓘ | Pyromorphite | 8.BN.05 | Pb5(PO4)3Cl |
| ⓘ | Vanadinite | 8.BN.05 | Pb5(VO4)3Cl |
| ⓘ | Phosphohedyphane | 8.BN.05 | Ca2Pb3(PO4)3Cl |
| Group 9 - Silicates | |||
| ⓘ | Chrysocolla | 9.ED.20 | Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 |
| Unclassified | |||
| ⓘ | 'Limonite' | - | |
| ⓘ | 'Psilomelane' | - | |
| ⓘ | 'Wad' | - | |
| ⓘ | 'Manganese Oxides' | - | |
| ⓘ | 'Mimetite-Vanadinite Series' | - | |
List of minerals for each chemical element
Other Regions, Features and Areas containing this locality
Mexico
- Sierra Madre OccidentalMountain Range
North AmericaContinent
- Sonoran DesertDesert
North America PlateTectonic Plate
- Basin and Range BasinsBasin
- Mojave DomainDomain
- Southern Basin and RangeWide Rift
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Robert E. Lee Mine, Tres de Mayo Mine group, Palmetto District, Fresno Canyon, Patagonia Mountains, Santa Cruz County, Arizona, USA