| Deposit ID | 10183973 |
|---|---|
| MRDS ID | M050045 |
| MAS/MILS ID | 0040190284 |
| Record type | Site |
| Current site name | Leader Mine |
| Alternate or previous names | Unit, Az, Usbm Ofr Mla 11-94., Coronado Nf, Part 12, Santa Rita Mt |
| Related records | 10103734 |
| Point of reference | Main Entrance |
|---|---|
| Geographic coordinates: | -110.77008, 31.85953 (WGS84) |
| Elevation | 1463 |
| Location accuracy | 100(meters) |
Political divisions (FIPS codes)
Pima(county)
Arizona(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Helvetia(quadrangle 1:24,000 scale)
Fort Huachuca(quadrangle 1:100,000 scale)
Nogales(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Upper Santa Cruz(hydrologic unit)
Santa Cruz(hydrologic accounting unit)
Middle Gila(hydrologic subregion)
Lower Colorado(hydrologic region)
Federal lands
Coronado National Forest(National Forest)
National Forest FS(Type of land area)
FS(Federal land areas administered by FS)
| Country | State | County |
|---|---|---|
| United States | Arizona | Pima |
| Meridian | Township | Range | Section | Fraction | State |
|---|---|---|---|---|---|
| Gila and Salt River | 018 S | 015 E | 24 | SENWNW | Arizona |
| Commodity | Importance |
|---|---|
| Copper | Primary |
| Gold | Secondary |
| Molybdenum | Primary |
| Silver | Primary |
| Zinc Critical | Secondary |
| Main Entrance (1) | -110.77008, 31.85953 |
|---|
| |||||||||||||||
| Operation type | Underground |
|---|---|
| Development status | Past Producer |
| Commodity type | Metallic |
| Deposit size | Small |
| Significant | No |
| Year of first production | 1880 |
| District name | Helvetia-Rosemont District |
|---|
| Type of mineral rights | Patented |
|---|
| Ownership category | Private |
|---|
| Type | Unknown |
|---|---|
| Owner | Helvetia Mining And Milling Co |
| Year | 1934 |
| Type | Owner-Operator |
|---|---|
| Owner | Asarco (American Smelting And Refining Co.) |
| Home office | Arizona |
| Year | 1992 |
| First year | 1988 |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| U.S. Bureau of Mines | Minerals Availability System | MAS | 0040190284 | |
| USGS | Mineral Resources Data System | MRDS | M050045 | MAS references MRDS |
S B KEITH ARIZ BUR MINES BULL 189 P126 1974
USGS SAHUARITA QUADRANGLE
F C SCHRADER, 1915, USGS BULL 582, P. 106.
CREASEY AND QUICK, 1955, USGS BULL 1027F, P. 315.
| Subject category | Comment text |
|---|---|
| Deposit | LEADER MINE UNDERLIES THE COPPER FEND, COPPER WORLD, AND OWOSKO PATENTED CLAIMS, ALL OF WHICH ARE PART OF THE HELVETIA PROPERTY OWNED BY ASARCO (1992). |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 07-OCT-1994 | Intermountain Field Operations Center (IFOC) | U.S. Bureau of Mines |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.
MRDS records operators as of each record's last update (≤ 2019). Some of the operators listed here have since changed hands or dissolved:
Curated by qvyshift.com from publicly-reported M&A activity (SEC filings, press releases, USGS Mineral Yearbooks). Not authoritative — verify against primary sources before relying on it. The MSHA panel above is the current authoritative source for actively-permitted mines.
These are landing pages for further research — the state agencies don't currently expose per-mine deep links.