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UCMP A3708

King County, Washington
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Next site in WashingtonIssaquah · 8 mi

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Based on our latest records, with claims updated from the BLM on Oct 15, 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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About UCMP A3708

UCMP A3708 is a fossil collection site in King, Washington, cataloged in the Paleobiology Database. Fossils here come from the Blakeley Formation, dated to the Chattian (27.3–23.04 million years ago). The depositional environment is recorded as marine indet. Documented finds include Psammotreta (Leporimetis) rostellata, Macoma (Macoma) twinensis, Nuculana (Saccella) ochsneri, Panopea generosa, Pitar, Solen clallamensis.

Geologic setting

Formation
Blakeley
Geologic interval
Chattian
Age
27.3–23.04 Ma
Depositional environment
marine indet.
Recorded occurrences
15

Fossils found here

Psammotreta (Leporimetis) rostellata
Bivalvia · Tellinidae
Macoma (Macoma) twinensis
Bivalvia · Tellinidae
Nuculana (Saccella) ochsneri
Bivalvia · Nuculanidae
Panopea generosa
Bivalvia · Hiatellidae
Pitar
Bivalvia · Veneridae
Solen clallamensis
Bivalvia · Solenidae
Tellina
Bivalvia · Tellinidae
Clinocardium (Clinocardium) dickersoni
Bivalvia · Cardiidae
Agasoma acuminatum
Gastropoda · Buccinidae
Crepidula sookensis
Gastropoda · Calyptraeidae
Natica (Naticarius) teglandi
Gastropoda · Naticidae
Polinices (Euspira) lincolnensis
Gastropoda · Naticidae
Fusinus (Priscofusus) hannibali
Gastropoda · Fasciolariidae
Sinum scopulosum
Gastropoda · Naticidae

Records and references

Data: Paleobiology Database collection 208173 (CC BY 4.0) — view the source record

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Questions about UCMP A3708

Can you collect at UCMP A3708?

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 UCMP A3708?

Fossil.

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What to bring

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Meteorite nearbyA 17 g iron meteorite was found at Tacoma in 1925, 26 miles from here.

Source: Paleobiology Database.