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Willow Creek [USNM]

Fergus County, Montana
Directions
Next site in MontanaUSGS "blue file" Loc. 13369 · 9 mi

Can I collect here?

Pro
See who owns this land and whether it is claimedPro shows the owner, the claim on this spot and every claim within a mile.
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Based on our latest records, with claims updated from the BLM on Oct 9, 2026. Land and claims can change quickly, so check before you go.

Minerals on record here

1 mineral

Recorded here: fossil.

Nearby sites

All of Montana
9 miUSGS "blue file" Loc. 13369Fossil10 miUSGS "blue file" Loc. 13368Fossil10 miWillow Creek (CM)Fossil

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About Willow Creek [USNM]

Willow Creek [USNM] is a fossil collection site in Fergus, Montana, cataloged in the Paleobiology Database. Fossils here come from the Judith River Formation, dated to the Campanian (83.6–72.2 million years ago). The depositional environment is recorded as terrestrial indet. Documented finds include Hadrosauridae.

Geologic setting

Formation
Judith River
Geologic interval
Campanian
Age
83.6–72.2 Ma
Depositional environment
terrestrial indet.
Recorded occurrences
1
Locality notes

1 mi. W of Maginnis Jct., Willow Creek, Fergus Co. - also described as ca. 10 mi. N of Musselshell River (location estimated as these locations are difficult to pinpoint and overlap)

Fossils found here

Hadrosauridae
Ornithischia · Hadrosauridae

Records and references

Data: Paleobiology Database collection 276701 (CC BY 4.0) — view the source record

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Questions about Willow Creek [USNM]

Can you collect at Willow Creek [USNM]?

It depends on who owns the land and whether a mining claim covers it. BLM land usually allows hand collecting for personal use, national parks allow none, and private land needs the owner’s permission. Pro members see the owner and any claims at this spot.

What minerals are found at Willow Creek [USNM]?

Fossil.

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Source: Paleobiology Database.