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Round Rock 2 (UCMP A272)

Apache County, Arizona
Directions
Next site in ArizonaMNA 1496, 5 km NE Many Farms · 5 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 3, 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 Arizona
5 miMNA 1496, 5 km NE Many FarmsFossil9 miRound Rock 4A (UCMP V3210)Fossil13 miLukachukai W (UCMP A270)Fossil

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About Round Rock 2 (UCMP A272)

Round Rock 2 (UCMP A272) is a fossil collection site in Apache, Arizona, cataloged in the Paleobiology Database. Fossils here come from the Chinle Formation, dated to the Norian (227.3–205.7 million years ago). The depositional environment is recorded as terrestrial indet. Documented finds include Smilosuchus gregorii.

Geologic setting

Formation
Chinle
Geologic interval
Norian
Age
227.3–205.7 Ma
Depositional environment
terrestrial indet.
Recorded occurrences
1
Locality notes

10 km southwest of Round Rock Trading Post

Fossils found here

Smilosuchus gregorii
Reptilia · Parasuchidae

Records and references

Data: Paleobiology Database collection 93362 (CC BY 4.0) — view the source record

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Questions about Round Rock 2 (UCMP A272)

Can you collect at Round Rock 2 (UCMP A272)?

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 Round Rock 2 (UCMP A272)?

Fossil.

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Source: Paleobiology Database.