RockWoof
Check access before you go. Most sites listed here are old mines, quarries or prospects, and many are on private land or active mining claims. Get the landowner's permission, check the rules of the agency that manages any public land, and never enter mine workings. Locations are approximate.

Sketch map

Unnamed Pits (Past Producer)Construction Products Division (Producer)Osburn Pit & Plant (Producer)1604 Cement Plant and Quarry (Producer)
Past ProducerProducerProspectOccurrenceStatus unknown
4 paw pins, one per site. Hover or tap a pin for the site name. 1 site(s) with USGS coordinates outside the outline are not pinned. County outline: US Census Bureau cartographic boundary file (2023). Locations approximate.

Field cards: what kind of sites?

4
Producer

Was producing when the record was made.

1
Past Producer

Produced ore or material at some point in the past.

Status terms come from USGS MRDS records.

Minerals recorded here

Bentonite 1

Commodities

Silica 2Bentonite 1Vermiculite 1Cement Rock 1

Sites

SiteCommodityMinerals recordedStatusApprox. location
Unnamed PitsBentoniteBentonitePast Producer29.387, -98.709
Construction Products DivisionVermiculite—Producer29.334, -98.500
1604 Cement Plant and QuarryCement Rock—Producer29.617, -98.382
Freddie E Harris PitSilica—Producer29.146, -98.589
Osburn Pit & PlantSilica—Producer29.167, -98.497

Fossil collections

The Paleobiology Database lists 44 fossil collection records in Bexar County. These are research records, not public dig sites.

Nearby counties

Zavala County · Atascosa County · Karnes County · Bee County · Live Oak County

Texas mineral guides

Back to all Texas counties.

Related articles

How we built this page: we counted named sites in the USGS Mineral Resources Data System (MRDS) for this area, left out sand, gravel, crushed stone, clay pits and unnamed sites, grouped them by Census county, and linked every site to its USGS record. We did not visit these sites, and MRDS does not tell you who owns the land or whether collecting is allowed.

Source: USGS Mineral Resources Data System (MRDS). USGS ceased systematic updates to MRDS around 2011, so status and details may be out of date. Each site links to its USGS record.

Updated