| Deposit ID | 10131721 |
|---|---|
| MAS/MILS ID | 0530579008 |
| Record type | Site |
| Current site name | Hamilton Mill |
| Point of reference | Plant |
|---|---|
| Geographic coordinates: | -121.99564, 48.52921 (WGS84) |
| Elevation | 30 |
| Location accuracy | 1000(meters) |
Political divisions (FIPS codes)
Skagit(county)
Washington(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Hamilton(quadrangle 1:24,000 scale)
Mount Baker(quadrangle 1:100,000 scale)
Concrete(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Lower Skagit(hydrologic unit)
Puget Sound(hydrologic accounting unit)
Puget Sound(hydrologic subregion)
Pacific Northwest(hydrologic region)
| Country | State | County |
|---|---|---|
| United States | Washington | Skagit |
| Meridian | Township | Range | Section | Fraction | State |
|---|---|---|---|---|---|
| Willamette | 035 N | 006 E | 14 | NENE | Washington |
| Commodity | Importance |
|---|---|
| Magnesite | Primary |
| Plant (1) | -121.99564, 48.52921 |
|---|
| Operation type | Processing Plant |
|---|---|
| Development status | Producer |
| Commodity type | Metallic |
| Significant | No |
| Type of mineral rights | Unknown |
|---|
| Ownership category | Unknown |
|---|
| Type | Operator |
|---|---|
| Owner | Imc Olivine |
| ID | 4500779 |
| Home office | Washington |
| Year | 1980 |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| U.S. Bureau of Mines | Minerals Availability System | MAS | 0530579008 | |
| Mine Safety and Health Administration | MSHA | MSHA | 4500779 |
MSHA RPT DATED JULY 1980.
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 25-NOV-83 | Western Field Operations Center (WFOC) | U.S. Bureau of Mines |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.
| Status | Abandoned since 03/15/2012 |
|---|---|
| MSHA mine ID | 4500779 |
| Mine name (MSHA) | Hamilton Mill |
| Current operator | Unimin Corp |
| Current controller (parent) | Covia Holdings LLC |
| Mine type | Surface (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MSHA's last published Mines export (February 2025); MSHA's public bulk feed has been unavailable since, so this may be out of date.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.