| Calendar Year Determined | Date of Incident | Mine Name | Operator Name | Mine ID | Location | Determination |
|---|---|---|---|---|---|---|
| 2021 | 2/5/2021 | Logansport Cement Plant | Lehigh Cement Company, LLC | 1200065 | Cass, IN | Natural Causes |
| 2021 | 1/26/2021 | North Bend | Cadman Inc | 4503547 | King, WA | Natural Causes |
| 2021 | 10/10/2020 | Materion Natural Resources | Materion Natural Resources | 4200706 | Millard, UT | Natural Causes |
| 2021 | 3/3/2021 | Elk Creek Plant | Ramaco Resources, LLC | 4602444 | Logan, WV | Natural Causes |
| 2021 | 1/15/2021 | Hamburg Division | Eastern Concrete Materials, Inc | 2800011 | Sussex, NEW | Natural Causes |
| 2021 | 1/6/2021 | Hecla Greens Mine | Hecla Greens Creek Mining Co | 5001267 | Juneau, AK | Natural Causes |
| 2021 | 1/31/2021 | Ottawa Plant | U. S. Silica Company | 1101013 | La Salle, IL | Natural Causes |
| 2021 | 3/11/2021 | Viburnum #35 | The Doe Run Company | 2301800 | Iron, MO | Natural Causes |
| 2021 | 9/15/2020 | Skyline Mine #3 | Canyon Fuel Company LLC | 4201566 | Carbon, UT | Natural Causes |
| 2021 | 8/6/2020 | Mount Hope Quarry | Tilcon NY, Inc. | 2800026 | Morris, NJ | Natural Causes |
| 2021 | 9/24/2019 | Haile Gold Mine | Haile Gold Mine, Inc. | 3800600 | Lancaster, SC | Drug overdose |
| 2021 | 10/7/2019 | Davenport Ranch Cline Quarry | Colorado Materials LTD | 4104860 | Uvalde, TX | Natural Causes |
| Calendar Year Determined | Date of Incident | Mine Name | Operator Name | Mine ID | Location | Determination |
|---|---|---|---|---|---|---|
| 2020 | 10/29/2020 | Omya California | Omya Inc. | 0400167 | San Bernardino, CA | Natural Causes |
| 2020 | 2/4/2020 | Century Mine | American Energy Corporation | 3301070 | Monroe, OH | Natural Causes |
| 2020 | 2/18/2020 | East Ridge Plant & Geiseke Plant | Kyanite Mining Corp | 4403743 | Buckingham, VA | Natural Causes |
| 2020 | 4/30/2019 | Wild Boar Mine | Peabody Wild Boar Mining, LLC | 1202441 | Warrick County, IN | Natural Causes |
| 2020 | 1/31/2019 | Mallard Creek Quarry | Martin Marietta Materials, Inc | 3102006 | Mecklenburg County, NC | Natural Causes |
| 2020 | 9/14/2019 | The Chemours Company FC LLC | The Chemours Company FC LLC | 800225 | Clay, FL | Natural Causes |
| 2020 | 11/21/2019 | GCC Rio Grande, Inc. | Freeport-McMoRan Chino Mines Company | 2900708 | Grant, NM | Natural Causes |
| 2020 | 9/12/2019 | Slate Sand | Slate Sand Company Inc. | 3101989 | Surry, NC | Natural Causes |
| 2020 | 12/26/2019 | Lightle Sand Pit | Lightle Sand & Construction LLC | 3400527 | Kingfisher, OK | Natural Causes |
| 2020 | 2/7/2020 | TRP-Sacramento Plant | Triangle Rock Products | 04-04772 | Sacramento, CA | Natural Causes |
| 2020 | 1/29/2020 | Swift Creek Mine | Nutrien | 08-00798 | Hamilton, FL | Natural Causes |
| 2020 | 1/29/2020 | No. 5 | MRM MINING INC. | 15-19724 | Floyd, KY | Natural Causes |
| 2020 | 2/8/2020 | Morenci Mine | Freeport-McMoRan Morenci INC. | 0200024 | Greenlee, AZ | Drug Overdose |
| 2020 | 2/24/2020 | Genesis | Nevada Gold Mines, LLC | 2600062 | Eureka, NV | Natural Causes |
| 2020 | 1/5/2020 | Black Thunder Mine | Thunder Basin Coal Company LLC | 4800977 | Campbell, WY | Natural Causes |
| 2020 | 5/11/2020 | Irvington Quarry | Liter's Inc. | 1500044 | Breckinridge, KY | Natural Causes |
| 2020 | 5/4/2020 | Mine # 3 | Double Mountain Mining LLC | 1519268 | Bell, KY | Natural Causes |
| 2020 | 3/19/2020 | Lebec Cement Plant | National Cement Company Of California Inc. | 0400213 | Kern, CA | Natural Causes |
| 2020 | 4/28/2020 | Lila Canyon | Utah American Energy, Inc. | 4202241 | Carbon, UT | Natural Causes |
| 2020 | 4/17/2020 | Cedar Bluff | Sierra Frac Sand, LLC | 1601575 | Bossier, LA | Natural Causes |
| 2020 | 3/16/2020 | Ray Mine | Asarco LLC | 0200150 | Gila, AZ | Natural Causes |
| 2020 | 2/10/2020 | Rosebud Mining | Rosebud Mining Company | 3609437 | Indiana, PA | Natural Causes |
| 2020 | 6/4/2020 | Sterling Materials | Sterling Materials | 1518068 | Gallatin, KY | Natural Causes |
| 2020 | 7/15/2020 | Millville Quarry | Aggregate Industries | 4600027 | Jefferson, WV | Drug Overdose |
| 2020 | 8/11/2020 | Perry Pit | Memphis Stone & Gravel Company | 7700763 | Tate, MS | Natural Causes |
| 2020 | 8/19/2020 | Patriot Mine No. 2 | Patriot Mining, LLC | 4407137 | Wise, WV | Natural Causes |
| 2020 | 8/28/2020 | Deep Mine No. 44 | Paramont Contura, LLC | 4407308 | Dickenson, VA | Natural Causes |
| 2020 | 8/13/2020 | Wrens Plant | KaMin LLC | 0900143 | Jefferson, GA | Natural Causes |
| Calendar Year Determined | Date of Incident | Mine Name | Operator Name | Mine ID | Location | Determination |
|---|---|---|---|---|---|---|
| 2019 | 11/2/18 | Texas Quarry | Bluegrass Materials Company, LLC | 1800009 | Baltimore County, MD | Natural Causes |
| 2019 | 12/11/18 | Rockhampton #3 | Rockhampton Energy LLC | 1519702 | Bell County, KY | Natural Causes |
| 2019 | 11/7/18 | Big Island Mine & Refinery | Ciner Wyoming, LLC | 4800154 | Sweetwater County, WY | Natural Causes |
| 2019 | 12/2/18 | Craney Mine | Solar Sources Mining LLC | 1201732 | Daviess County, IN | Natural Causes |
| 2019 | 12/19/18 | Union Bridge MD | Lehigh Cement Company LLC | 1800017 | Carroll County, MD | Natural Causes |
| 2019 | 1/8/19 | Holden No 22 Prep Plant | Coal-Mac LLC | 4605909 | Logan County, WV | Natural Causes |
| 2019 | 1/14/19 | Jarisa Inc. Mine No. 1 | Jarisa Inc. | 1519684 | Pike County, KY | Natural Causes |
| 2019 | 11/29/18 | Hopkins Hill Sand & Stone | Hopkins Hill Sand & Stone LLC | 3700202 | Washington County, RI | Natural Causes |
| 2019 | 3/11/19 | Liberty Mine | Vigo Coal Operating Company LLC | 1202428 | Warrick County, IN | Natural Causes |
| 2019 | 12/11/18 | Houston Mill | Imerys Talc America, Inc. | 4102113 | Harris County, TX | Natural Causes |
| 2019 | 1/30/19 | Alpena Plant | Holcim US | 2000044 | Alpena County, MI | Natural Causes |
| 2019 | 3/4/19 | Amerikohl Strips Mine | Amerikohl Mining Inc. | 3609654 | Butler County, PA | Natural Causes |
| 2019 | 3/25/19 | Enlow Fork Mine | Consol Pennsylvania Coal Company LLC | 3607416 | Washington County, PA | Natural Causes |
| 2019 | 3/4/19 | Amerikohl Strips Mine | Amerikohl Mining Inc. | 3609654 | Butler County, PA | Natural Causes |
| 2019 | 6/5/19 | Lincoln County Quarry | Lincoln County Highway Department | 4000064 | Lincoln County, TN | Natural Causes |
| 2019 | 5/13/19 | Gold Bar | McEwen Mining Nevada, Inc. | 2602818 | Eureka County, NV | Rescission: Natural Causes |
| 2019 | 4/24/19 | EPB Strip | E P Bender Coal Company | 3608398 | Cambria County, PA | Natural Causes |
| 2019 | 3/4/19 | Clarkdale Facility | Phoenix Cement | 200001 | Yavapai County, AZ | Natural Causes |
| 2019 | 4/17/19 | Workman Creek Surface Mine | Republic Energy LLC | 4609475 | Raleigh County, WV | Natural Causes |
| 2019 | 2/2/19 | Louisville Plant Quarry & Mill | Ash Grove Cement Company | 2500002 | Cass County, NE | Natural Causes |
| 2019 | 3/31/19 | Lee Creek Mine | PCS Phosphate Company Inc | 3100212 | Beaufort County, NC | Natural Causes |
| 2019 | 4/19/19 | Little Rock Plant | Holiday Rock Company Inc | 0401690 | Los Angeles County, CA | Natural Causes |
| 2019 | 6/12/19 | No.8 | Black Pearl Mining Inc | 1517982 | Pike Couinty, KY | Natural Causes |
| 2019 | 10/11/2018 | Florida Canyon Mine | Florida Canyon Mining Inc. | 2601947 | Pershing County, NV | Natural Causes |
| 2019 | 7/8/2019 | Canby Sand & Gravel DBA | CalPortland Company | 3500497 | Clackamas County, OR | Natural Causes |
| 2019 | 12/6/2018 | Strasburg Quarry | O-N Minerals (Chemstone Company) | 4400026 | Shenandoah County, VA | Natural Causes |
| 2019 | 6/19/2019 | Antelope Coal Mine | Antelope Coal LLC | 4801337 | Converse County, WY | Natural Causes |
| 2019 | 6/10/2019 | Bull Branch Mine | Tennco, Inc. | 1519848 | Bell County, KY | Natural Causes |
| 2019 | 4/14/2019 | Liberty Mine | Luminant Mining Company LLC | 4104964 | Rusk County, TX | Natural Causes |
| 2019 | 2/9/2019 | Beulah Mine | Westmoreland Beulah Mining LLC | 3200043 | Mercer County, ND | Natural Causes |
| 2019 | 8/14/2019 | Mason City Plant | Lehigh Cement Company LLC | 1300095 | Cerro Gordo County, IA | Natural Causes |
| Calendar Year Determined | Date of Incident | Mine Name | Operator Name | Mine ID | Location | Determination |
|---|---|---|---|---|---|---|
| 2018 | 8/8/18 | Mill/Autoclave Operations | Barrick Goldstrike Mines Inc. | 2602674 | Eureka County, NV | Natural Causes |
| 2018 | 9/13/18 | Bailey Mine | Consol Pennsylvania Coal Company LLC | 3607230 | Greene County, PA | Natural Causes |