USGS Mineral Resources Data System
Type: Historical mine record
Supports:
- mine identity
- development status
- commodities
- underground eligibility evidence
Arizona · Pima County
Marconi Mine Group
Multiple Sources Confirmed Copper Underground
Key facts
- State
- Arizona
- County
- Pima
- Development status
- Past Producer
- Mine type
- Underground
- Primary commodity
- Copper
- Verification
- Multiple Sources Confirmed
Mine Location
Approximate AreaDocumented underground workings
Mindat locality description
‡Ref.: Keith, Stanton B. (1974), Arizona Bureau of Geology & Mineral Technology, Geology Survey Branch Bull. 189, Index of Mining Properties in Pima County, Arizona: 135 (Table 4). Niemuth, N.J. & K.A. Phillips (1992), Copper Oxide Resources, Arizon…
Additional documented workings
-
Level
— documented in 8 source records,
noting 300 ft long, 400 ft long, 200 ft long.
Arizona Geological Survey / ADMMR — "Marconi Mine Group" -
Raise
— documented in 6 source records,
noting 55 ft, 16 ft, 240 ft.
Arizona Geological Survey / ADMMR — "Marconi Mine Group" -
Winze
— documented in 4 source records,
noting 55 ft, 15 ft, 16 ft.
Arizona Geological Survey / ADMMR — "Marconi Mine Group" -
Incline
— documented in 2 source records.
Arizona Geological Survey / ADMMR — "Marconi Mine Group"
Historical mapped workings
USGS historical topographic mapping. Features may no longer exist.
- 12 shaft symbols
View individual source records (22)
Every underlying record used to build the summary above, for research/verification use.
-
Incline
Documented in Arizona Geological Survey / ADMMR PDF (“Marconi Mine Group”). Evidence: PDF: re noticea ble. THE MARCONI SHAFT: This incline shaft-a one compartment shaft- reaches a… -
Level
· length 300
Documented in Arizona Geological Survey / ADMMR PDF (“Marconi Mine Group”). Evidence: PDF: high grade ore that ~s developed on the 300 Level. The viin cuts thru quartzites which a… -
Level
· length 400
Documented in Arizona Geological Survey / ADMMR PDF (“Marconi Mine Group”). Evidence: PDF: e1 E~st. If this ore shoot oomes to the 400 Level, the tohnage will be increased another… -
Level
· length 400
Documented in Arizona Geological Survey / ADMMR PDF (“Marconi Mine Group”). Evidence: PDF: tallurgy Engineering Drift East aOO' on 400 Level Total for ' inspection 600.00 500.00 4… -
Level
· length 200
Documented in Arizona Geological Survey / ADMMR PDF (“Marconi Mine Group”). Evidence: PDF: owever, ' 1t will ~s J:lc$.-4 that " ," 200 level dollar. , value assays to'~'onl7 'ii,… -
Raise
Documented in Arizona Geological Survey / ADMMR PDF (“Marconi Mine Group”). Evidence: PDF: e #55020 (Jacobs) ·Jan 1~ Sample No. 1 Raise Feb. 8 .21 6.5 .55 ' 1,;k~~6 , Winze )[0. 1… -
Raise
Documented in Arizona Geological Survey / ADMMR PDF (“Marconi Mine Group”). Evidence: PDF: .D.B 1..,2 5 16 .02 2.8 .8 " ~: " No. 2 Raise Pile " Face Pile 16'! f't in. tI No. 1 " R… -
Raise
Documented in Arizona Geological Survey / ADMMR PDF (“Marconi Mine Group”). Evidence: PDF: ile " Face Pile 16'! f't in. tI No. 1 " Raise Pile No. 2 " Fac'~ " No. 1 n " .01 1.1 .4… -
Winze
Documented in Arizona Geological Survey / ADMMR PDF (“Marconi Mine Group”). Evidence: PDF: 1 Raise Feb. 8 .21 6.5 .55 ' 1,;k~~6 , Winze )[0. 1 " .08 3.4 .05 · 9 ·jI:.1 15.55 . ',… -
Winze
Documented in Arizona Geological Survey / ADMMR PDF (“Marconi Mine Group”). Evidence: PDF: 8 22.05 15-7 Inches 'I No. 1 ~ i . ~{ " Winze 2-9-30 9 .62 1.8 .15 ' " No-. 1 10 . O~ :.…
-
Incline
Marconi Mine Group -
Raise
Marconi Mine Group -
Raise
Marconi Mine Group -
Raise
Marconi Mine Group -
Winze
Marconi Mine Group -
Winze
Marconi Mine Group -
Level
— 200
Marconi Mine Group -
Level
— 400
Marconi Mine Group -
Level
— 400
Marconi Mine Group -
Level
— 300
Marconi Mine Group
- Derived from MRDS oper_type (existing operation): Underground
- MRDS oper_type documents existing underground operation (dev_stat=Past Producer): Underground · oper_type
Verification
Multiple Sources Confirmed
Independent historical source evidence corroborates underground workings.
Why confirmed?
Confirmed by independent Arizona Geological Survey / ADMMR historical documentation describing underground workings, in addition to USGS MRDS catalog eligibility. Not a member field verification.
Why it's listed
USGS source data documents underground workings for this record.
History & operations
Historical record
- Development status: Past Producer
Operators / organizations
- Hilzinger · Historical operator · 1948
Commodities & minerals
Access & recent conditions
- Land
- unknown
Community reports
No community field reports yet.
I Visited This MineSources & evidence
USGS Historical Topographic Mine Features
Type: Historical mapped physical features
Dataset: DOI 10.5066/P9TAALR6
Supports:
- mapped shaft symbols (12)
Historical mapped features may no longer exist.
Arizona Geological Survey / ADMMR
Type: Historical mine documents
Record: 1 historical document
Supports:
- historical mine identity
- historical mine documentation
- documented workings
Historical documentation does not imply current access or open workings.
Mindat
Type: Mineralogical locality database
Record: Mindat Locality: 36254
Supports:
- locality identity
A Mindat locality match does not by itself establish underground workings.
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