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Castle Rock

Gove County, Kansas
Directions
Next site in KansasTrego County · 10 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 9, 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 Castle Rock

Castle Rock is a fossil collection site in Gove, Kansas, cataloged in the Paleobiology Database. Fossils here come from the Niobrara Formation, dated to the Middle Santonian (85.7–83.6 million years ago). The depositional environment is recorded as marine indet. Documented finds include Coniasaurus.

Geologic setting

Formation
Niobrara
Geologic interval
Middle Santonian
Age
85.7–83.6 Ma
Depositional environment
marine indet.
Recorded occurrences
1
Locality notes

"near “Castle Rock,” southeastern Gove County, Kansas (detailed locality information is on file at FHSM)."

Fossils found here

Coniasaurus
Reptilia · Dolichosauridae

Records and references

Data: Paleobiology Database collection 103989 (CC BY 4.0) — view the source record

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Questions about Castle Rock

Can you collect at Castle Rock?

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 Castle Rock?

Fossil.

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What to bring

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Meteorite nearbyA 15 kg stony meteorite was found at Ransom in 1938, 20 miles from here.

Source: Paleobiology Database.