Knox Plant — Quarry and material-source record

Primary commodity in source: Construction Sand and Gravel; Operator in source: Holsey Mining Inc.. Recorded location: Houston, TX. Review the recorded source identity, location and material information together. Confirm current eligibility and operating details with the original publisher.

StateTX

Source-backed record from MSHA active surface aggregate mine register. Browse the labeled observations and original source below.

Source collection
MSHA active surface aggregate mine register
Source checked
2026-10-15

Reported record details

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Source data row 69323

MSHA mine-register snapshot. Active means the status reported in this download, not a current operating guarantee or DOT materials approval. Coordinates are reported by the source and may represent portable operations.

MSHA mine ID
4104039
Mine name in source
Knox Plant
Mine type in source
Surface
Status in source
Active
Status effective date in source
11/17/1998
Operator in source
Holsey Mining Inc.
State
TX
County
Houston
Nearest town in source
Crockett
Primary commodity code
144200
Primary commodity in source
Construction Sand and Gravel
Portable operation flag (Y/N)
N
Reported latitude
31.331111
Reported longitude
-95.625

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