Mines in Ottawa County, Ohio
Ottawa County, Ohio has 13 mines on MSHA's register: 2 active, 2 intermittent, 9 abandoned. 448 accidents have been reported at these mines between 1983 and 2025. Inspectors have issued 1,430 citations.
Every mine MSHA has registered in Ottawa County, working or not, with the accident, fatality and citation record each one carries on this site. Active mines are listed first, then the rest by the weight of their record.
- Mines on register
- 13
- Active
- 2
- Fatalities on record
- 0
- Citations issued
- 1,430
ⓘ
County figures come from the US Census Bureau's American Community Survey, 5-year pooled estimates, so the 2023 vintage covers 2019 through 2023. The Census category is 'mining, quarrying, and oil and gas extraction', which is broader than MSHA jurisdiction and includes oil and gas workers no mine employs. These figures describe the surrounding county, not this mine, and are not a factor in any specific incident.Mines plot only where MSHA holds a surveyed coordinate for the site; mines the agency locates to a town, county or state centroid are in the counts and the list above but not drawn. Click a point for the mine's status and record.
| Operator | Mines | Active | Fatalities |
|---|---|---|---|
| Stoneco, Inc. | 2 | 0 | 0 |
| Amrize Great Lakes Inc. | 1 | 1 | 0 |
| Cardinal Aggregate | 1 | 0 | 0 |
| Cornerstone Crushing LLC | 1 | 0 | 0 |
| Erie Blacktop Inc | 1 | 0 | 0 |
| Genoa Limestone | 1 | 0 | 0 |
| Geo Gradel Co | 1 | 0 | 0 |
| Gerken Materials Inc | 1 | 0 | 0 |
| Glawe Inc | 1 | 0 | 0 |
| Graymont Dolime (Oh) Inc | 1 | 1 | 0 |
-
Amrize Marblehead AggregatesActive 0 fatal 590 citationsSurface metal/non-metal · Amrize Great Lakes Inc. · MSHA ID 3300099
-
Graymont Dolime (OH) Inc.Active 0 fatal 425 citationsFacility metal/non-metal · Graymont Dolime (Oh) Inc · MSHA ID 3300170
-
White Rock QuarryIntermittent 0 fatal 124 citationsSurface metal/non-metal · Stoneco, Inc. · MSHA ID 3300091
-
Cardinal Aggregate/Port ClintonAbandoned 0 fatal 25 citationsFacility metal/non-metal · Cardinal Aggregate · MSHA ID 3301188
-
Genoa Limestone Plant 1Intermittent 0 fatal 166 citationsSurface metal/non-metal · Genoa Limestone · MSHA ID 3304247
-
Rocky Ridge QuarryAbandoned 0 fatal 25 citationsSurface metal/non-metal · Stoneco Inc · MSHA ID 3302696
-
Marblehead QuarryAbandoned 0 fatal 51 citationsFacility metal/non-metal · Geo Gradel Co · MSHA ID 3304530
-
PORT CLINTON STONE YD.Abandoned 0 fatal 6 citationsFacility metal/non-metal · Gerken Materials Inc · MSHA ID 3304411
-
KellstoneAbandoned 0 fatal 18 citationsFacility metal/non-metal · Independence Excavating · MSHA ID 3304505
-
BAYCLIFFS SUBDIVISIONAbandoned 0 fatal 0 citationsSurface metal/non-metal · Erie Blacktop Inc · MSHA ID 3304378
-
Johnsons Island QuarryAbandoned 0 fatal 0 citationsSurface metal/non-metal · Glawe Inc · MSHA ID 3303514
-
U S Gypsum MillAbandoned 0 fatal 0 citationsFacility metal/non-metal · United States Gypsum Company · MSHA ID 3303534
-
Unit 3 Portable CrusherAbandoned 0 fatal 0 citationsSurface metal/non-metal · Cornerstone Crushing LLC · MSHA ID 3304811
Status, type and operator are as reported to MSHA. Fatality and accident counts are MSHA's reportable accident records for the mine; citations are inspector-issued violations on record. Each mine's own page carries the full detail.
The register is MSHA's Mine Data Retrieval System: every operation ever assigned a mine ID, including ones abandoned decades ago, so the count is a history of mining in the county, not a count of working mines. A mine's county is the one its operator reported to MSHA. Fatality and accident counts start with MSHA's reportable-accident records (1983 onward); citation counts are inspector-issued violations on record. We are an independent research tool, not MSHA.