Data / Mines / Iowa / Portable Grizzly #2
Portable Grizzly #2, Clayton County, Iowa: 0 MSHA citations
Updated November 6, 2026. Source: US Department of Labor, Mine Safety and Health Administration (MSHA), Open Government Data Sets.
Portable Grizzly #2 is an intermittent crushed, broken limestone surface mine in Clayton County, Iowa, operated by C.J. Moyna & Sons LLC with 2 employees on MSHA's record (mine ID 1302373). Since January 1, 2022 MSHA inspectors issued 0 citations and orders there with $0 in proposed penalties, and 0 accident reports were filed there, with no injury or illness cases.
The request: Watch Portable Grizzly #2 (MSHA mine ID 1302373) in Clayton County, Iowa: each new citation and each accident report. $10 of work on sign-up, no card.
SpecStream is the live web data engine for teams and agents. It reads the mine, citation, inspection and accident files that MSHA publishes, and this page is that reading. Ask for the mines of a commodity, state or operator with the operator's headquarters, website and size added from the web, and new mines, new citations and new accident reports arrive in your sheet, CRM, Slack or agent as MSHA posts them.
- MSHA mine ID
- 1302373
- Status
- Intermittent since August 3, 2026
- Main commodity
- Crushed, broken limestone
- Mine type
- Surface
- County
- Clayton County, Iowa
- Nearest town
- Clayton
- Operator
- C.J. Moyna & Sons LLC
- Employees
- 2
- MSHA field office
- Fort Dodge IA Field Office
- Citations and orders since January 1, 2022
- 0
- Inspections
- 3
- Inspector hours on site
- 4
- Citations per inspection
- 0.00 (all mines 2.30)
- Accident reports
- 0
- Injury and illness cases
- 0
- Fatalities
- 0
- Latest MSHA record
- August 4, 2025
Other open mines in Clayton County, Iowa
| Mine | Operator | County | Main commodity | Employees | Citations since 2022 |
|---|---|---|---|---|---|
| Pattison Company, LLC | Pattison Company, LLC | Clayton County, IA | Sand, industrial | 139 | 190 |
| Portable Sand 2 | Dyersville Ready Mix Inc | Clayton County, IA | Construction sand and gravel | 2 | 15 |
| Mielke's Quarry | L J Crushing | Clayton County, IA | Crushed, broken limestone | 2 | 9 |
| Portable Wash Plant | C.J. Moyna & Sons LLC | Clayton County, IA | Construction sand and gravel | 2 | 7 |
| Portable Plant #2 | C.J. Moyna & Sons LLC | Clayton County, IA | Crushed, broken limestone | 4 | 4 |
| Recker Rock Products, LLC | Recker Rock Products, LLC | Clayton County, IA | Construction sand and gravel | 2 | 3 |
| Portable Grizzly | C.J. Moyna & Sons LLC | Clayton County, IA | Sand, industrial | 2 | 1 |
US government work, public domain. Counts come from the MSHA files published on November 6, 2026. An open mine is one MSHA lists as Active, Intermittent, New Mine, Temporarily Idled or NonProducing; 13,673 were open that day. Citations, penalties, inspections and accident reports run from January 1, 2022. A citation is an inspector's allegation and an operator can contest it; the penalty is the amount MSHA first proposed, before any contest or settlement. An operator is the legal entity MSHA assesses, and a parent company is its controller. Mines run by sole proprietors or by individuals are counted in every total and are not named. This page uses MSHA data and is not endorsed or certified by MSHA. Free to reuse with credit to SpecStream under CC BY 4.0. Spot a wrong value? Write to [email protected] with the link to this page.