| Deposit ID | 10137909 |
|---|---|
| MRDS ID | TC10355 |
| MAS/MILS ID | 0040190374 |
| Record type | Site |
| Current site name | Rillito Mill |
| Alternate or previous names | California Portland Cement Co. |
| Point of reference | Plant |
|---|---|
| Geographic coordinates: | -111.15129, 32.41071 (WGS84) |
| Elevation | 628 |
| Location accuracy | 100(meters) |
Political divisions (FIPS codes)
Pima(county)
Arizona(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Marana(quadrangle 1:24,000 scale)
Silver Bell Mountains(quadrangle 1:100,000 scale)
Tucson(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Lower Santa Cruz(hydrologic unit)
Santa Cruz(hydrologic accounting unit)
Middle Gila(hydrologic subregion)
Lower Colorado(hydrologic region)
| Country | State | County |
|---|---|---|
| United States | Arizona | Pima |
| Meridian | Township | Range | Section | Fraction | State |
|---|---|---|---|---|---|
| Gila and Salt River | 012 S | 012 E | 06 | S2SESE | Arizona |
| Commodity | Importance |
|---|---|
| Cement Rock | Tertiary |
| Limestone, General | Primary |
| Plant (1) | -111.15129, 32.41071 |
|---|
| Operation type | Processing Plant |
|---|---|
| Development status | Producer |
| Commodity type | Non-metallic |
| Significant | No |
| Ownership category | Unknown |
|---|
| Type | Owner-Operator |
|---|---|
| Owner | Arizona Portland Cement Co. |
| ID | 201138 |
| Interest | 100 |
| Home office | California |
| Year | 1979 |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| U.S. Bureau of Mines | Minerals Availability System | MAS | 0040190374 | |
| USGS | Mineral Resources Data System | MRDS | TC10355 | MAS references MRDS |
| Mine Safety and Health Administration | MSHA | MSHA | 0201138 |
ARIZ BUR MINES BULL 189 P 103 1974
REV BY MILS 7-79
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 19-OCT-95 | ADMR | U.S. Bureau of Mines |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.
| Status | Active since 08/18/1972 |
|---|---|
| MSHA mine ID | 0201138 |
| Mine name (MSHA) | RILLITO PLANT |
| Current operator | CalPortland Company |
| Current controller (parent) | Taiheiyo Cement Corp |
| Mine type | Facility (Metal / non-metal) |
MSHA cross-reference per the original MRDS record. Mine status and operator reflect MSHA's last published Mines export (February 2025); MSHA's public bulk feed has been unavailable since, so this may be out of date. See the Mine Data Retrieval System for current status.
Open MSHA's Mine Data Retrieval System for inspections, accidents, and violations for this mine.
These are landing pages for further research — the state agencies don't currently expose per-mine deep links.