Ash Grove Cement CO - Montana City Plant
100 Mt Hwy 518, Clancy, MT 59634
LIKELY ACTIVELAST SEEN IN FEDERAL DATA JUL 2026 · 3 SOURCES
Operating signal within 24 months, or from a single source.
What they make
Cement Manufacturing327310Where it is
46.54448, -111.92062 · CENSUS TIGER
Other plants nearby
| Facility | City | Industry | Status | Distance |
|---|---|---|---|---|
| Cretex Concrete Products - Montana City | Montana City | Concrete Pipe Manufacturing 327332 | UNVERIFIED | 3.6 KM |
| Precast Mockel & Excavation, CO. | Helena | Ready-Mix Concrete Manufacturing 327320 | UNVERIFIED | 5.8 KM |
| Helena Sand & Gravel, INC | Helena | Ready-Mix Concrete Manufacturing 327320 | LIKELY ACTIVE | 7.6 KM |
| Helena Sand & Gravel | Helena | Asphalt Paving Mixture and Block Manufacturing 324121 | UNVERIFIED | 7.9 KM |
| Hlncp | Helena | Concrete Pipe Manufacturing 327332 | LIKELY ACTIVE | 11.5 KM |
Also at this address
No other federal record shares this street address.
WHERE THIS RECORD COMES FROM — 3 FEDERAL SOURCES, 6 FIELDS
Every fact on this page traces to a public federal filing. The table below names which register holds this facility, whether that register proves the plant operates or only that it exists, and when each of them last saw it.
EPA cross-references this facility in AIR, AIRS/AFS, CEDRI, E-GGRT, EIS, ICIS, MT-CEDARS, NCDB, NPDES, RCRAINFO, TRIS, TSCA.
| Source | Evidence | First seen | Last seen |
|---|---|---|---|
| EPA ECHO | OPERATING | JUL 2026 | JUL 2026 |
| EPA FRS | EXISTENCE | FEB 2026 | FEB 2026 |
| EPA TRI | OPERATING | DEC 2023 | DEC 2023 |
FIELD BY FIELD — WHICH SOURCE SUPPLIED WHAT
| FIELD | SOURCE | SIGNAL |
|---|---|---|
| ADDRESS LINE1 | EPA FRS | JUL 2026 |
| CITY | EPA FRS | JUL 2026 |
| GEOM | EPA FRS | JUL 2026 |
| NAME | EPA FRS | JUL 2026 |
| RCRA GENERATOR STATUS | EPA ECHO | SEP 2026 |
| STATE | EPA FRS | JUL 2026 |
Status is computed from independent sources; nothing here is self-reported unless marked Claimed.