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Colorado

Ammonite Ridge / Kremmling ammonite (BLM, CO)

Fossil site Documented siteLegal to collect
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What you could find

Reported finds from this ground.

FossilsFossils

Also reported: baculites in Pierre Shale.

Photos via Wikimedia Commons: Partonez (CC BY-SA 4.0).

Why this spot

Cretaceous

Huge Pierre Shale ammonites. Follow BLM RNA rules; core protected.

Keep exploring nearby

More spots in this area.

Check access and collecting rules for each site.
Gilman townsite58 km away · Riverbank
›
Lulu City silver camp in the Kawuneeche Valley62 km away · Ghost town
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Empire gold camp on the pass road68 km away · Old dump ground
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Silver Plume Clear Creek silver camp68 km away · Old dump ground
›