Mine · Medina County, Texas, United States

Medina Rock & Rail

Medina Rock & Rail is a mine in Medina County, Texas, United States, owned by Martin Marietta Materials, Inc.

Facts

Every value links to its source, and to the source's own record where it has one. Licences and last-checked dates are per row.

Fact	Value	Source
Location	Medina County	MSHA Mines Data Set · Public domain · checked 24 Oct 2026
Status	Operating (active)	MSHA Mines Data Set · Public domain · checked 24 Oct 2026
Commodities	crushed limestone (mainly crushed limestone)	MSHA Mines Data Set · Public domain · checked 24 Oct 2026
Owner	Martin Marietta Materials, Inc. (controls the operator)	MSHA Mines Data Set · Public domain · checked 24 Oct 2026
Operator	Martin Marietta Materials Southwest, LLC	MSHA Mines Data Set · Public domain · checked 24 Oct 2026
Employees	51 people (annual average, in 2025)	MSHA Mines Data Set · Public domain · checked 24 Oct 2026
Mine type	Surface	MSHA Mines Data Set · Public domain · checked 24 Oct 2026
Coordinates	29.3886, -99.2439	MSHA Mines Data Set · Public domain · checked 24 Oct 2026

Research on this mine and its owner.Who owns it up to the parent company, its permits, resources and offtake, and an introduction to the owner.

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How its owner compares

Martin Marietta Materials, Inc. owns 29 of the 2,675 mines in the United States in our data with a named owner; 3 owners have more. Counts cover the mines in our data that name an owner, holder or operator; an asset with several owners counts for each.

Owner in United States	Rank	Mines	Share
Alpha Metallurgical Resources Inc	1st	56	2.1%
Sev.en Global Investments a.s.	2nd	50	1.9%
Rosebud Mining Company	3rd	40	1.5%
Martin Marietta Materials, Inc.	4th	29	1.1%
Metinvest B V	4th	29	1.1%

Nearby

Within 50 km of this mine: 15 data centers (2 operating, 107 MW) and 4 power plants, measured from the coordinates in the facts above. The table shows the nearest 6, up to 3 per kind.

Name	Kind	Size	Status	Distance
Dunlay Solar	Power plant	180 MW	Planned	16 km
Microsoft SAT 82	Data center	—	—	36 km
Microsoft SAT 81	Data center	—	—	36 km
Microsoft SAT 80	Data center	—	—	36 km
Rio Lago Solar	Power plant	123 MW	Under construction	43 km
Uvalde Solar 2	Power plant	300 MW	Planned	48 km

Owner, operator and place

Other mines in Texas

All 154 mines in Texas, United States

Data on this page

Source: U.S. Energy Information Administration (Sep 2026). EIA-860 / 860M / 923, Public domain.
MSHA Mines Data Set. MSHA Mines Data Set, Public domain.