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Guano Cave, USGS 25025-PC

Arizona
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Next site in ArizonaClimax · 16 mi

Can I collect here?

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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.

16 miClimaxGold20 miPigeon Wash, USGS 27026-PCFossil25 miGold BeltGold

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About Guano Cave, USGS 25025-PC

Guano Cave, USGS 25025-PC is a fossil collection site in Arizona, cataloged in the Paleobiology Database. Fossils here come from the Watahomigi Formation, dated to the Morrowan (323.4–318.6 million years ago). The depositional environment is recorded as shallow subtidal indet. Documented finds include Anthracospirifer occiduus, Derbyia, Paleyoldia.

Geologic setting

Formation
Watahomigi
Geologic interval
Morrowan
Age
323.4–318.6 Ma
Depositional environment
shallow subtidal indet.
Recorded occurrences
3
Locality notes

Measured at tram to Guano Cave (also called Bat Cave) on south side of Colorado river.

Fossils found here

Anthracospirifer occiduus
Rhynchonellata · Spiriferidae
Derbyia
Strophomenata · Derbyiidae
Paleyoldia
Bivalvia · Sareptidae

Records and references

Data: Paleobiology Database collection 42670 (CC BY 4.0) — view the source record

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Questions about Guano Cave, USGS 25025-PC

Can you collect at Guano Cave, USGS 25025-PC?

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 Guano Cave, USGS 25025-PC?

Fossil.

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Meteorite nearbyA 430 kg iron meteorite was found at Wallapai in 1927, 16 miles from here.

Source: Paleobiology Database.