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Grizzly Creek, Caribou County

Idaho
Directions
Next site in IdahoReservoir Mountain (locality 3) · 6 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.
Read the collecting rules by land type

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 Idaho
6 miReservoir Mountain (locality 3)Fossil7 miHenry, Claraia zone, Caribou CountyFossil13 miUSGS 1336-PC, Jeff Cabin CreekFossil

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About Grizzly Creek, Caribou County

Grizzly Creek, Caribou County is a fossil collection site in Idaho, cataloged in the Paleobiology Database. Fossils here come from the Park City Formation, dated to the Kungurian (283.3–274.4 million years ago). The depositional environment is recorded as marine indet. Documented finds include Astartella subquadrata.

Geologic setting

Formation
Park City
Geologic interval
Kungurian
Age
283.3–274.4 Ma
Depositional environment
marine indet.
Recorded occurrences
1
Locality notes

Sect. 30, T. 5 S., R. 40. E.

Fossils found here

Astartella subquadrata
Bivalvia · Astartidae

Records and references

Data: Paleobiology Database collection 125785 (CC BY 4.0) — view the source record

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Questions about Grizzly Creek, Caribou County

Can you collect at Grizzly Creek, Caribou County?

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 Grizzly Creek, Caribou County?

Fossil.

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Source: Paleobiology Database.