Owner · Company
Horizon Hill Materials, LLC
Horizon Hill Materials, LLC operates a mine in the United States. It is a subsidiary of Keeley RMQ LLC; Horizon Hill Materials RMQ LLC.
Portfolio
The 1 asset or right Horizon Hill Materials, LLC owns, operates or holds, by class, with its role in each. Sizes are the whole asset's, so they are not added up: the sources give no share for this owner.
- Mine1
Mines 1
| Mine | Location | Role | Mineral resources |
|---|---|---|---|
| Rosemary's Mountain Quarry | San Diego County, California, United States | Operator | — |
By country
Where the assets and rights are.
- The United States1 mine
Group
Parent companies
From Horizon Hill Materials, LLC up to its ultimate parent in the data.
- Horizon Hill Materials, LLC
- Keeley RMQ LLC; Horizon Hill Materials RMQ LLC
Partners and counterparties
Owners, operators and grid operators on the same assets.
Facts
| Fact | Value | Source |
|---|---|---|
| Name in the source | HORIZON HILL MATERIALS, LLC | MSHA Mines Data Set · Public domain · checked 24 Oct 2026 |
Research on Horizon Hill Materials, LLC.Its full portfolio, its parent companies, and an introduction to the people who decide on buying and selling.
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- MSHA Mines Data Set. MSHA Mines Data Set, Public domain.