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Galena 42 [Deadwood Fm]

Galena County, South Dakota
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Next site in South DakotaHorseshoe - Comet Mine · 0.4 mi

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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.

0.4 miHorseshoe - Comet MineChalcopyrite, copper, galena +51 miBion Fraction, Lehigh ClaimGold, pyrite, silver2 miOro Fino MineGalena, gold, pyrite, sphalerite

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About Galena 42 [Deadwood Fm]

Galena 42 [Deadwood Fm] is a fossil collection site in Galena, South Dakota, cataloged in the Paleobiology Database. Fossils here come from the Deadwood Formation, dated to the Dresbachian (497–486.85 million years ago). The depositional environment is recorded as foreshore. Documented finds include Coosia alethes, Crepicephalus auratus, Crepicephalus buttsi, Syspacheilus, Kingstonia walcotti, Blountia.

Geologic setting

Formation
Deadwood
Geologic interval
Dresbachian
Age
497–486.85 Ma
Depositional environment
foreshore
Recorded occurrences
8
Locality notes

Section 90.9m thick, interval from 12.7m to 49.7m examined for this study. Located on northwest-facing slope above Bear Butte Creek 0.6km south of town of Galena. Interval of Crepicephalus Zone thickened about 18m by tow igneous sills and likely repetition of part of section by talus-covered faults located about 17 and 33m above base of section.

Fossils found here

Coosia alethes
Trilobita · Crepicephalidae
Crepicephalus auratus
Trilobita · Crepicephalidae
Crepicephalus buttsi
Trilobita · Crepicephalidae
Syspacheilus
Trilobita · Marjumiidae
Kingstonia walcotti
Trilobita · Kingstoniidae
Blountia
Trilobita · Kingstoniidae
Blountiella
Trilobita · Asaphiscidae

Records and references

Data: Paleobiology Database collection 7686 (CC BY 4.0) — view the source record

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Questions about Galena 42 [Deadwood Fm]

Can you collect at Galena 42 [Deadwood Fm]?

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 Galena 42 [Deadwood Fm]?

Fossil.

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Meteorite nearbyA 6.3 kg iron meteorite was found at Crow Peak in 1958, 19 miles from here.

Source: Paleobiology Database.