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USGS M1691, Santa Cruz

Santa Cruz County, California
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Next site in CaliforniaSanta Cruz 1 · 0.5 mi

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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.

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0.5 miSanta Cruz 1Fossil0.6 miSanta CruzFossil2 miSanta CruzFossil

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About USGS M1691, Santa Cruz

USGS M1691, Santa Cruz is a fossil collection site in Santa Cruz, California, cataloged in the Paleobiology Database. The depositional environment is recorded as coastal indet. Documented finds include Acmaea, Diodora aspera, Fissurellidea bimaculata, Calliostoma, Calliostoma ligatum, Balcis micans.

Geologic setting

Geologic interval
Late Pleistocene
Age
0.129–0.0117 Ma
Depositional environment
coastal indet.
Recorded occurrences
56
Geology notes

A Pleistocene terrace shellbed, hence transgressive.

Locality notes

Narrow southern trending point, 1,600 ft due W of Santa Cruz Point and near S1/4 corner, section 24, T 11 S, R 2 W, Santa Cruz quadrangle, 1954 ed.

Fossils found here

Acmaea
Gastropoda · Acmaeidae
Diodora aspera
Gastropoda · Fissurellidae
Fissurellidea bimaculata
Gastropoda · Fissurellidae
Calliostoma
Gastropoda · Trochidae
Calliostoma ligatum
Gastropoda · Trochidae
Balcis micans
Gastropoda · Eulimidae
Lacuna (Epheria) carinata
Gastropoda · Littorinidae
Alvania iliuliukensis
Gastropoda · Rissoidae
Pseudodiala acuta
Gastropoda · Barleeiidae
Fartulum dextroversum
Gastropoda · Caecidae
Serpulorbis
Gastropoda · Vermetidae
Neostylidium eschrichtii
Gastropoda · Cerithiidae
Cerithiopsis stejnegeri
Gastropoda · Cerithiopsidae
Crepidula adunca
Gastropoda · Calyptraeidae
Crepidula nummaria
Gastropoda · Calyptraeidae
Cryptonatica affinis
Gastropoda · Naticidae
Polinices
Gastropoda · Naticidae
Velutina velutina
Gastropoda · Velutinidae
Paciocinebrina interfossa
Gastropoda · Muricidae
Acanthinucella spirata
Gastropoda · Muricidae
Thais lamellosa
Gastropoda · Muricidae
Searlesia dira
Gastropoda · Buccinidae
Amphissa columbiana
Gastropoda · Pyrenidae
Alia carinata
Gastropoda · Columbellidae
Mitrella tuberosa
Gastropoda · Columbellidae
Caesia fossatus
Gastropoda · Nassariidae
Callianax biplicata
Gastropoda · Olividae
Propebela tabulata
Gastropoda · Mangeliidae
Diaphana brunnea
Gastropoda · Diaphanidae
Iselica ovoidea
Gastropoda · Pyramidellidae
Odostomia (Amaura) avellana
Gastropoda · Pyramidellidae
Odostomia
Gastropoda · Pyramidellidae
Adula diegensis
Bivalvia · Mytilidae
Adula californiensis
Bivalvia · Mytilidae
Ostrea
Bivalvia · Ostreidae
Chlamys hastata
Bivalvia · Pectinidae
Clinocardium (Clinocardium) nuttallii
Bivalvia · Cardiidae
Nutricola tantilla
Bivalvia · Veneridae
Saxidomus giganteus
Bivalvia · Veneridae
Leukoma staminea
Bivalvia · Veneridae
Petricola (Petricola) carditoides
Bivalvia · Petricolina
Tresus nuttallii
Bivalvia · Mactridae
Ameritella modesta
Bivalvia · Tellinidae
Siliqua patula
Bivalvia · Pharidae
Cryptomya californica
Bivalvia · Myidae
Platyodon cancellatus
Bivalvia · Myidae
Penitella penita
Bivalvia · Pholadidae
Mopalia ciliata
Polyplacophora · Mopaliidae

Showing 48 of 50 identified taxa.

Records and references

Data: Paleobiology Database collection 37673 (CC BY 4.0) — view the source record

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Questions about USGS M1691, Santa Cruz

Can you collect at USGS M1691, Santa Cruz?

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 USGS M1691, Santa Cruz?

Fossil.

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Source: Paleobiology Database.